Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 1 | //===-- IRForTarget.cpp -----------------------------------------*- C++ -*-===// |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "lldb/Expression/IRForTarget.h" |
| 11 | |
| 12 | #include "llvm/Support/raw_ostream.h" |
Chandler Carruth | 1e15758 | 2013-01-02 12:20:07 +0000 | [diff] [blame] | 13 | #include "llvm/IR/Constants.h" |
| 14 | #include "llvm/IR/DataLayout.h" |
| 15 | #include "llvm/IR/InstrTypes.h" |
| 16 | #include "llvm/IR/Instructions.h" |
| 17 | #include "llvm/IR/Intrinsics.h" |
| 18 | #include "llvm/IR/Module.h" |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 19 | #include "llvm/PassManager.h" |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 20 | #include "llvm/Transforms/IPO.h" |
Chandler Carruth | 1e15758 | 2013-01-02 12:20:07 +0000 | [diff] [blame] | 21 | #include "llvm/IR/ValueSymbolTable.h" |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 22 | |
| 23 | #include "clang/AST/ASTContext.h" |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 24 | |
| 25 | #include "lldb/Core/dwarf.h" |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 26 | #include "lldb/Core/ConstString.h" |
| 27 | #include "lldb/Core/DataBufferHeap.h" |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 28 | #include "lldb/Core/Log.h" |
| 29 | #include "lldb/Core/Scalar.h" |
| 30 | #include "lldb/Core/StreamString.h" |
| 31 | #include "lldb/Expression/ClangExpressionDeclMap.h" |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 32 | #include "lldb/Expression/IRExecutionUnit.h" |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 33 | #include "lldb/Expression/IRInterpreter.h" |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 34 | #include "lldb/Host/Endian.h" |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 35 | #include "lldb/Symbol/ClangASTContext.h" |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 36 | #include "lldb/Symbol/ClangASTType.h" |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 37 | |
| 38 | #include <map> |
| 39 | |
| 40 | using namespace llvm; |
| 41 | |
Sean Callanan | eaacbc9 | 2010-08-18 18:50:51 +0000 | [diff] [blame] | 42 | static char ID; |
| 43 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 44 | IRForTarget::StaticDataAllocator::StaticDataAllocator(lldb_private::IRExecutionUnit &execution_unit) : |
| 45 | m_execution_unit(execution_unit), |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 46 | m_stream_string(lldb_private::Stream::eBinary, execution_unit.GetAddressByteSize(), execution_unit.GetByteOrder()), |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 47 | m_allocation(LLDB_INVALID_ADDRESS) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 48 | { |
| 49 | } |
| 50 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 51 | IRForTarget::FunctionValueCache::FunctionValueCache(Maker const &maker) : |
| 52 | m_maker(maker), |
| 53 | m_values() |
| 54 | { |
| 55 | } |
| 56 | |
| 57 | IRForTarget::FunctionValueCache::~FunctionValueCache() |
| 58 | { |
| 59 | } |
| 60 | |
| 61 | llvm::Value *IRForTarget::FunctionValueCache::GetValue(llvm::Function *function) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 62 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 63 | if (!m_values.count(function)) |
| 64 | { |
| 65 | llvm::Value *ret = m_maker(function); |
| 66 | m_values[function] = ret; |
| 67 | return ret; |
| 68 | } |
| 69 | return m_values[function]; |
| 70 | } |
| 71 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 72 | lldb::addr_t IRForTarget::StaticDataAllocator::Allocate() |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 73 | { |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 74 | lldb_private::Error err; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 75 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 76 | if (m_allocation != LLDB_INVALID_ADDRESS) |
| 77 | { |
| 78 | m_execution_unit.FreeNow(m_allocation); |
| 79 | m_allocation = LLDB_INVALID_ADDRESS; |
| 80 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 81 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 82 | m_allocation = m_execution_unit.WriteNow((const uint8_t*)m_stream_string.GetData(), m_stream_string.GetSize(), err); |
| 83 | |
| 84 | return m_allocation; |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 85 | } |
| 86 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 87 | static llvm::Value *FindEntryInstruction (llvm::Function *function) |
| 88 | { |
| 89 | if (function->empty()) |
| 90 | return NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 91 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 92 | return function->getEntryBlock().getFirstNonPHIOrDbg(); |
| 93 | } |
| 94 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 95 | IRForTarget::IRForTarget (lldb_private::ClangExpressionDeclMap *decl_map, |
| 96 | bool resolve_vars, |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 97 | lldb_private::IRExecutionUnit &execution_unit, |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 98 | lldb_private::Stream *error_stream, |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 99 | const char *func_name) : |
Sean Callanan | e2ef6e3 | 2010-09-23 03:01:22 +0000 | [diff] [blame] | 100 | ModulePass(ID), |
Stephen Wilson | 71c21d1 | 2011-04-11 19:41:40 +0000 | [diff] [blame] | 101 | m_resolve_vars(resolve_vars), |
| 102 | m_func_name(func_name), |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 103 | m_module(NULL), |
Johnny Chen | 4480530 | 2011-07-19 19:48:13 +0000 | [diff] [blame] | 104 | m_decl_map(decl_map), |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 105 | m_data_allocator(execution_unit), |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 106 | m_CFStringCreateWithBytes(NULL), |
Sean Callanan | 1a8d409 | 2010-08-27 01:01:44 +0000 | [diff] [blame] | 107 | m_sel_registerName(NULL), |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 108 | m_intptr_ty(NULL), |
Stephen Wilson | 71c21d1 | 2011-04-11 19:41:40 +0000 | [diff] [blame] | 109 | m_error_stream(error_stream), |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 110 | m_result_store(NULL), |
| 111 | m_result_is_pointer(false), |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 112 | m_reloc_placeholder(NULL), |
| 113 | m_entry_instruction_finder (FindEntryInstruction) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 114 | { |
| 115 | } |
| 116 | |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 117 | /* Handy utility functions used at several places in the code */ |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 118 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 119 | static std::string |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 120 | PrintValue(const Value *value, bool truncate = false) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 121 | { |
| 122 | std::string s; |
Jim Ingham | 28eb571 | 2012-10-12 17:34:26 +0000 | [diff] [blame] | 123 | if (value) |
| 124 | { |
| 125 | raw_string_ostream rso(s); |
| 126 | value->print(rso); |
| 127 | rso.flush(); |
| 128 | if (truncate) |
| 129 | s.resize(s.length() - 1); |
| 130 | } |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 131 | return s; |
| 132 | } |
| 133 | |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 134 | static std::string |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 135 | PrintType(const llvm::Type *type, bool truncate = false) |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 136 | { |
| 137 | std::string s; |
| 138 | raw_string_ostream rso(s); |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 139 | type->print(rso); |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 140 | rso.flush(); |
| 141 | if (truncate) |
| 142 | s.resize(s.length() - 1); |
| 143 | return s; |
| 144 | } |
| 145 | |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 146 | IRForTarget::~IRForTarget() |
| 147 | { |
| 148 | } |
| 149 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 150 | bool |
| 151 | IRForTarget::FixFunctionLinkage(llvm::Function &llvm_function) |
| 152 | { |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 153 | llvm_function.setLinkage(GlobalValue::ExternalLinkage); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 154 | |
Sean Callanan | 7f27d60 | 2011-11-19 02:54:21 +0000 | [diff] [blame] | 155 | std::string name = llvm_function.getName().str(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 156 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 157 | return true; |
| 158 | } |
| 159 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 160 | IRForTarget::LookupResult |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 161 | IRForTarget::GetFunctionAddress (llvm::Function *fun, |
| 162 | uint64_t &fun_addr, |
| 163 | lldb_private::ConstString &name, |
| 164 | Constant **&value_ptr) |
| 165 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 166 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 167 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 168 | fun_addr = LLDB_INVALID_ADDRESS; |
| 169 | name.Clear(); |
| 170 | value_ptr = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 171 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 172 | if (fun->isIntrinsic()) |
| 173 | { |
| 174 | Intrinsic::ID intrinsic_id = (Intrinsic::ID)fun->getIntrinsicID(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 175 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 176 | switch (intrinsic_id) |
| 177 | { |
| 178 | default: |
| 179 | if (log) |
| 180 | log->Printf("Unresolved intrinsic \"%s\"", Intrinsic::getName(intrinsic_id).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 181 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 182 | if (m_error_stream) |
| 183 | m_error_stream->Printf("Internal error [IRForTarget]: Call to unhandled compiler intrinsic '%s'\n", Intrinsic::getName(intrinsic_id).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 184 | |
Jason Molenda | 52d7603 | 2014-07-09 01:10:37 +0000 | [diff] [blame] | 185 | return LookupResult::Fail; |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 186 | case Intrinsic::memcpy: |
| 187 | { |
| 188 | static lldb_private::ConstString g_memcpy_str ("memcpy"); |
| 189 | name = g_memcpy_str; |
| 190 | } |
| 191 | break; |
Sean Callanan | a6cbf06 | 2011-11-16 00:20:50 +0000 | [diff] [blame] | 192 | case Intrinsic::memset: |
| 193 | { |
| 194 | static lldb_private::ConstString g_memset_str ("memset"); |
| 195 | name = g_memset_str; |
| 196 | } |
| 197 | break; |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 198 | case Intrinsic::dbg_declare: |
Sean Callanan | 131be99 | 2014-04-09 00:59:41 +0000 | [diff] [blame] | 199 | case Intrinsic::dbg_value: |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 200 | return LookupResult::Ignore; |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 201 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 202 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 203 | if (log && name) |
| 204 | log->Printf("Resolved intrinsic name \"%s\"", name.GetCString()); |
| 205 | } |
| 206 | else |
| 207 | { |
| 208 | name.SetCStringWithLength (fun->getName().data(), fun->getName().size()); |
| 209 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 210 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 211 | // Find the address of the function. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 212 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 213 | clang::NamedDecl *fun_decl = DeclForGlobal (fun); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 214 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 215 | if (fun_decl) |
| 216 | { |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 217 | if (!m_decl_map->GetFunctionInfo (fun_decl, fun_addr)) |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 218 | { |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 219 | lldb_private::ConstString altnernate_name; |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 220 | bool found_it = m_decl_map->GetFunctionAddress (name, fun_addr); |
| 221 | if (!found_it) |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 222 | { |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 223 | // Check for an alternate mangling for "std::basic_string<char>" |
| 224 | // that is part of the itanium C++ name mangling scheme |
| 225 | const char *name_cstr = name.GetCString(); |
Jim Ingham | 28eb571 | 2012-10-12 17:34:26 +0000 | [diff] [blame] | 226 | if (name_cstr && strncmp(name_cstr, "_ZNKSbIcE", strlen("_ZNKSbIcE")) == 0) |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 227 | { |
| 228 | std::string alternate_mangling("_ZNKSs"); |
| 229 | alternate_mangling.append (name_cstr + strlen("_ZNKSbIcE")); |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 230 | altnernate_name.SetCString(alternate_mangling.c_str()); |
| 231 | found_it = m_decl_map->GetFunctionAddress (altnernate_name, fun_addr); |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 232 | } |
| 233 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 234 | |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 235 | if (!found_it) |
| 236 | { |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 237 | lldb_private::Mangled mangled_name(name); |
| 238 | lldb_private::Mangled alt_mangled_name(altnernate_name); |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 239 | if (log) |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 240 | { |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 241 | if (alt_mangled_name) |
| 242 | log->Printf("Function \"%s\" (alternate name \"%s\") has no address", |
| 243 | mangled_name.GetName().GetCString(), |
| 244 | alt_mangled_name.GetName().GetCString()); |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 245 | else |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 246 | log->Printf("Function \"%s\" had no address", |
| 247 | mangled_name.GetName().GetCString()); |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 248 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 249 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 250 | if (m_error_stream) |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 251 | { |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 252 | if (alt_mangled_name) |
| 253 | m_error_stream->Printf("error: call to a function '%s' (alternate name '%s') that is not present in the target\n", |
| 254 | mangled_name.GetName().GetCString(), |
| 255 | alt_mangled_name.GetName().GetCString()); |
Greg Clayton | da1eb04 | 2013-04-23 21:48:38 +0000 | [diff] [blame] | 256 | else if (mangled_name.GetMangledName()) |
| 257 | m_error_stream->Printf("error: call to a function '%s' ('%s') that is not present in the target\n", |
| 258 | mangled_name.GetName().GetCString(), |
| 259 | mangled_name.GetMangledName().GetCString()); |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 260 | else |
Greg Clayton | 5e0c5e8 | 2012-07-18 20:47:40 +0000 | [diff] [blame] | 261 | m_error_stream->Printf("error: call to a function '%s' that is not present in the target\n", |
| 262 | mangled_name.GetName().GetCString()); |
Greg Clayton | f0705c8 | 2011-10-22 03:33:13 +0000 | [diff] [blame] | 263 | } |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 264 | return LookupResult::Fail; |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 265 | } |
| 266 | } |
| 267 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 268 | else |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 269 | { |
| 270 | if (!m_decl_map->GetFunctionAddress (name, fun_addr)) |
| 271 | { |
| 272 | if (log) |
| 273 | log->Printf ("Metadataless function \"%s\" had no address", name.GetCString()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 274 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 275 | if (m_error_stream) |
| 276 | m_error_stream->Printf("Error [IRForTarget]: Call to a symbol-only function '%s' that is not present in the target\n", name.GetCString()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 277 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 278 | return LookupResult::Fail; |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 279 | } |
| 280 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 281 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 282 | if (log) |
Daniel Malea | d01b295 | 2012-11-29 21:49:15 +0000 | [diff] [blame] | 283 | log->Printf("Found \"%s\" at 0x%" PRIx64, name.GetCString(), fun_addr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 284 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 285 | return LookupResult::Success; |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | llvm::Constant * |
| 289 | IRForTarget::BuildFunctionPointer (llvm::Type *type, |
| 290 | uint64_t ptr) |
| 291 | { |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 292 | PointerType *fun_ptr_ty = PointerType::getUnqual(type); |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 293 | Constant *fun_addr_int = ConstantInt::get(m_intptr_ty, ptr, false); |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 294 | return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty); |
| 295 | } |
| 296 | |
Sean Callanan | fc8feb8 | 2011-10-31 22:11:40 +0000 | [diff] [blame] | 297 | void |
| 298 | IRForTarget::RegisterFunctionMetadata(LLVMContext &context, |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 299 | llvm::Value *function_ptr, |
Sean Callanan | fc8feb8 | 2011-10-31 22:11:40 +0000 | [diff] [blame] | 300 | const char *name) |
| 301 | { |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 302 | for (llvm::User *user : function_ptr->users()) |
Sean Callanan | fc8feb8 | 2011-10-31 22:11:40 +0000 | [diff] [blame] | 303 | { |
Sean Callanan | fc8feb8 | 2011-10-31 22:11:40 +0000 | [diff] [blame] | 304 | if (Instruction *user_inst = dyn_cast<Instruction>(user)) |
| 305 | { |
Daniel Malea | f051dbc | 2013-06-03 20:45:54 +0000 | [diff] [blame] | 306 | MDString* md_name = MDString::get(context, StringRef(name)); |
| 307 | |
| 308 | MDNode *metadata = MDNode::get(context, md_name); |
| 309 | |
Sean Callanan | fc8feb8 | 2011-10-31 22:11:40 +0000 | [diff] [blame] | 310 | user_inst->setMetadata("lldb.call.realName", metadata); |
| 311 | } |
| 312 | else |
| 313 | { |
| 314 | RegisterFunctionMetadata (context, user, name); |
| 315 | } |
| 316 | } |
| 317 | } |
| 318 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 319 | bool |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 320 | IRForTarget::ResolveFunctionPointers(llvm::Module &llvm_module) |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 321 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 322 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 323 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 324 | for (llvm::Module::iterator fi = llvm_module.begin(); |
| 325 | fi != llvm_module.end(); |
| 326 | ++fi) |
| 327 | { |
| 328 | Function *fun = fi; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 329 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 330 | bool is_decl = fun->isDeclaration(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 331 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 332 | if (log) |
Sean Callanan | 7f27d60 | 2011-11-19 02:54:21 +0000 | [diff] [blame] | 333 | log->Printf("Examining %s function %s", (is_decl ? "declaration" : "non-declaration"), fun->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 334 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 335 | if (!is_decl) |
| 336 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 337 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 338 | if (fun->use_empty()) |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 339 | continue; // ignore |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 340 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 341 | uint64_t addr = LLDB_INVALID_ADDRESS; |
| 342 | lldb_private::ConstString name; |
| 343 | Constant **value_ptr = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 344 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 345 | LookupResult result = GetFunctionAddress(fun, |
| 346 | addr, |
| 347 | name, |
| 348 | value_ptr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 349 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 350 | switch (result) |
| 351 | { |
| 352 | case LookupResult::Fail: |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 353 | return false; // GetFunctionAddress reports its own errors |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 354 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 355 | case LookupResult::Ignore: |
| 356 | break; // Nothing to do |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 357 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 358 | case LookupResult::Success: |
| 359 | { |
| 360 | Constant *value = BuildFunctionPointer(fun->getFunctionType(), addr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 361 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 362 | RegisterFunctionMetadata (llvm_module.getContext(), fun, name.AsCString()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 363 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 364 | if (value_ptr) |
| 365 | *value_ptr = value; |
Stefanus Du Toit | fc6b7a0 | 2013-07-23 21:34:03 +0000 | [diff] [blame] | 366 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 367 | // If we are replacing a function with the nobuiltin attribute, it may |
| 368 | // be called with the builtin attribute on call sites. Remove any such |
| 369 | // attributes since it's illegal to have a builtin call to something |
| 370 | // other than a nobuiltin function. |
| 371 | if (fun->hasFnAttribute(llvm::Attribute::NoBuiltin)) { |
| 372 | llvm::Attribute builtin = llvm::Attribute::get(fun->getContext(), llvm::Attribute::Builtin); |
Stefanus Du Toit | fc6b7a0 | 2013-07-23 21:34:03 +0000 | [diff] [blame] | 373 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 374 | for (auto u : fun->users()) { |
| 375 | if (auto call = dyn_cast<CallInst>(u)) { |
| 376 | call->removeAttribute(AttributeSet::FunctionIndex, builtin); |
| 377 | } |
| 378 | } |
Stefanus Du Toit | fc6b7a0 | 2013-07-23 21:34:03 +0000 | [diff] [blame] | 379 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 380 | |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 381 | fun->replaceAllUsesWith(value); |
Stefanus Du Toit | fc6b7a0 | 2013-07-23 21:34:03 +0000 | [diff] [blame] | 382 | } |
Greg Clayton | 23f8c95 | 2014-03-24 23:10:19 +0000 | [diff] [blame] | 383 | break; |
Stefanus Du Toit | fc6b7a0 | 2013-07-23 21:34:03 +0000 | [diff] [blame] | 384 | } |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 385 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 386 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 387 | return true; |
| 388 | } |
| 389 | |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 390 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 391 | clang::NamedDecl * |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 392 | IRForTarget::DeclForGlobal (const GlobalValue *global_val, Module *module) |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 393 | { |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 394 | NamedMDNode *named_metadata = module->getNamedMetadata("clang.global.decl.ptrs"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 395 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 396 | if (!named_metadata) |
| 397 | return NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 398 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 399 | unsigned num_nodes = named_metadata->getNumOperands(); |
| 400 | unsigned node_index; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 401 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 402 | for (node_index = 0; |
| 403 | node_index < num_nodes; |
| 404 | ++node_index) |
| 405 | { |
Zachary Turner | 0d594e1 | 2014-11-05 18:37:53 +0000 | [diff] [blame] | 406 | llvm::MDNode *metadata_node = dyn_cast<llvm::MDNode>(named_metadata->getOperand(node_index)); |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 407 | if (!metadata_node) |
| 408 | return NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 409 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 410 | if (metadata_node->getNumOperands() != 2) |
| 411 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 412 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 413 | if (metadata_node->getOperand(0) != global_val) |
| 414 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 415 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 416 | ConstantInt *constant_int = dyn_cast<ConstantInt>(metadata_node->getOperand(1)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 417 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 418 | if (!constant_int) |
| 419 | return NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 420 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 421 | uintptr_t ptr = constant_int->getZExtValue(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 422 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 423 | return reinterpret_cast<clang::NamedDecl *>(ptr); |
| 424 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 425 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 426 | return NULL; |
| 427 | } |
| 428 | |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 429 | clang::NamedDecl * |
| 430 | IRForTarget::DeclForGlobal (GlobalValue *global_val) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 431 | { |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 432 | return DeclForGlobal(global_val, m_module); |
| 433 | } |
| 434 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 435 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 436 | IRForTarget::CreateResultVariable (llvm::Function &llvm_function) |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 437 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 438 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 439 | |
Sean Callanan | 9e6ed53 | 2010-09-13 21:34:21 +0000 | [diff] [blame] | 440 | if (!m_resolve_vars) |
| 441 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 442 | |
Sean Callanan | 9e6ed53 | 2010-09-13 21:34:21 +0000 | [diff] [blame] | 443 | // Find the result variable. If it doesn't exist, we can give up right here. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 444 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 445 | ValueSymbolTable& value_symbol_table = m_module->getValueSymbolTable(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 446 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 447 | std::string result_name_str; |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 448 | const char *result_name = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 449 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 450 | for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end(); |
| 451 | vi != ve; |
| 452 | ++vi) |
| 453 | { |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 454 | result_name_str = vi->first().str(); |
| 455 | const char *value_name = result_name_str.c_str(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 456 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 457 | if (strstr(value_name, "$__lldb_expr_result_ptr") && |
Sean Callanan | 7273e2d | 2012-11-02 22:28:08 +0000 | [diff] [blame] | 458 | strncmp(value_name, "_ZGV", 4)) |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 459 | { |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 460 | result_name = value_name; |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 461 | m_result_is_pointer = true; |
| 462 | break; |
| 463 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 464 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 465 | if (strstr(value_name, "$__lldb_expr_result") && |
Sean Callanan | 7273e2d | 2012-11-02 22:28:08 +0000 | [diff] [blame] | 466 | strncmp(value_name, "_ZGV", 4)) |
Sean Callanan | 46ae9e5 | 2010-09-28 21:13:03 +0000 | [diff] [blame] | 467 | { |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 468 | result_name = value_name; |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 469 | m_result_is_pointer = false; |
Sean Callanan | 46ae9e5 | 2010-09-28 21:13:03 +0000 | [diff] [blame] | 470 | break; |
| 471 | } |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 472 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 473 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 474 | if (!result_name) |
| 475 | { |
| 476 | if (log) |
| 477 | log->PutCString("Couldn't find result variable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 478 | |
Richard Mitton | 00dec20 | 2013-10-11 19:44:23 +0000 | [diff] [blame] | 479 | return true; |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 480 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 481 | |
Sean Callanan | 46ae9e5 | 2010-09-28 21:13:03 +0000 | [diff] [blame] | 482 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 483 | log->Printf("Result name: \"%s\"", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 484 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 485 | Value *result_value = m_module->getNamedValue(result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 486 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 487 | if (!result_value) |
| 488 | { |
| 489 | if (log) |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 490 | log->PutCString("Result variable had no data"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 491 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 492 | if (m_error_stream) |
| 493 | m_error_stream->Printf("Internal error [IRForTarget]: Result variable's name (%s) exists, but not its definition\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 494 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 495 | return false; |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 496 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 497 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 498 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 499 | log->Printf("Found result in the IR: \"%s\"", PrintValue(result_value, false).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 500 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 501 | GlobalVariable *result_global = dyn_cast<GlobalVariable>(result_value); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 502 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 503 | if (!result_global) |
| 504 | { |
| 505 | if (log) |
| 506 | log->PutCString("Result variable isn't a GlobalVariable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 507 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 508 | if (m_error_stream) |
| 509 | m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) is defined, but is not a global variable\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 510 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 511 | return false; |
| 512 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 513 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 514 | clang::NamedDecl *result_decl = DeclForGlobal (result_global); |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 515 | if (!result_decl) |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 516 | { |
| 517 | if (log) |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 518 | log->PutCString("Result variable doesn't have a corresponding Decl"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 519 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 520 | if (m_error_stream) |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 521 | m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) does not have a corresponding Clang entity\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 522 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 523 | return false; |
| 524 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 525 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 526 | if (log) |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 527 | { |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 528 | std::string decl_desc_str; |
| 529 | raw_string_ostream decl_desc_stream(decl_desc_str); |
| 530 | result_decl->print(decl_desc_stream); |
| 531 | decl_desc_stream.flush(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 532 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 533 | log->Printf("Found result decl: \"%s\"", decl_desc_str.c_str()); |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 534 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 535 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 536 | clang::VarDecl *result_var = dyn_cast<clang::VarDecl>(result_decl); |
| 537 | if (!result_var) |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 538 | { |
| 539 | if (log) |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 540 | log->PutCString("Result variable Decl isn't a VarDecl"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 541 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 542 | if (m_error_stream) |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 543 | m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s)'s corresponding Clang entity isn't a variable\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 544 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 545 | return false; |
| 546 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 547 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 548 | // Get the next available result name from m_decl_map and create the persistent |
| 549 | // variable for it |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 550 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 551 | // If the result is an Lvalue, it is emitted as a pointer; see |
| 552 | // ASTResultSynthesizer::SynthesizeBodyResult. |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 553 | if (m_result_is_pointer) |
| 554 | { |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 555 | clang::QualType pointer_qual_type = result_var->getType(); |
Sean Callanan | 78e3760 | 2011-01-27 04:42:51 +0000 | [diff] [blame] | 556 | const clang::Type *pointer_type = pointer_qual_type.getTypePtr(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 557 | |
Sean Callanan | fc4f2fb | 2011-12-14 01:13:04 +0000 | [diff] [blame] | 558 | const clang::PointerType *pointer_pointertype = pointer_type->getAs<clang::PointerType>(); |
| 559 | const clang::ObjCObjectPointerType *pointer_objcobjpointertype = pointer_type->getAs<clang::ObjCObjectPointerType>(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 560 | |
Sean Callanan | 5780f9d | 2011-12-08 19:04:34 +0000 | [diff] [blame] | 561 | if (pointer_pointertype) |
| 562 | { |
| 563 | clang::QualType element_qual_type = pointer_pointertype->getPointeeType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 564 | |
Sean Callanan | 5780f9d | 2011-12-08 19:04:34 +0000 | [diff] [blame] | 565 | m_result_type = lldb_private::TypeFromParser(element_qual_type.getAsOpaquePtr(), |
| 566 | &result_decl->getASTContext()); |
| 567 | } |
| 568 | else if (pointer_objcobjpointertype) |
| 569 | { |
| 570 | clang::QualType element_qual_type = clang::QualType(pointer_objcobjpointertype->getObjectType(), 0); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 571 | |
Sean Callanan | 5780f9d | 2011-12-08 19:04:34 +0000 | [diff] [blame] | 572 | m_result_type = lldb_private::TypeFromParser(element_qual_type.getAsOpaquePtr(), |
| 573 | &result_decl->getASTContext()); |
| 574 | } |
| 575 | else |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 576 | { |
| 577 | if (log) |
| 578 | log->PutCString("Expected result to have pointer type, but it did not"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 579 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 580 | if (m_error_stream) |
| 581 | m_error_stream->Printf("Internal error [IRForTarget]: Lvalue result (%s) is not a pointer variable\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 582 | |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 583 | return false; |
| 584 | } |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 585 | } |
| 586 | else |
| 587 | { |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 588 | m_result_type = lldb_private::TypeFromParser(result_var->getType().getAsOpaquePtr(), |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 589 | &result_decl->getASTContext()); |
| 590 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 591 | |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 592 | if (m_result_type.GetBitSize() == 0) |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 593 | { |
| 594 | lldb_private::StreamString type_desc_stream; |
| 595 | m_result_type.DumpTypeDescription(&type_desc_stream); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 596 | |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 597 | if (log) |
| 598 | log->Printf("Result type has size 0"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 599 | |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 600 | if (m_error_stream) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 601 | m_error_stream->Printf("Error [IRForTarget]: Size of result type '%s' couldn't be determined\n", |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 602 | type_desc_stream.GetData()); |
Sean Callanan | 960534c | 2011-12-21 23:44:05 +0000 | [diff] [blame] | 603 | return false; |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 604 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 605 | |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 606 | if (log) |
| 607 | { |
| 608 | lldb_private::StreamString type_desc_stream; |
Sean Callanan | 3bfdaa2 | 2011-09-15 02:13:07 +0000 | [diff] [blame] | 609 | m_result_type.DumpTypeDescription(&type_desc_stream); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 610 | |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 611 | log->Printf("Result decl type: \"%s\"", type_desc_stream.GetData()); |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 612 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 613 | |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 614 | m_result_name = lldb_private::ConstString("$RESULT_NAME"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 615 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 616 | if (log) |
Greg Clayton | faac111 | 2013-03-14 18:31:44 +0000 | [diff] [blame] | 617 | log->Printf("Creating a new result global: \"%s\" with size 0x%" PRIx64, |
Sean Callanan | 00f4362 | 2011-11-18 03:28:09 +0000 | [diff] [blame] | 618 | m_result_name.GetCString(), |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 619 | m_result_type.GetByteSize()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 620 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 621 | // Construct a new result global and set up its metadata |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 622 | |
| 623 | GlobalVariable *new_result_global = new GlobalVariable((*m_module), |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 624 | result_global->getType()->getElementType(), |
| 625 | false, /* not constant */ |
| 626 | GlobalValue::ExternalLinkage, |
| 627 | NULL, /* no initializer */ |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 628 | m_result_name.GetCString ()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 629 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 630 | // It's too late in compilation to create a new VarDecl for this, but we don't |
| 631 | // need to. We point the metadata at the old VarDecl. This creates an odd |
| 632 | // anomaly: a variable with a Value whose name is something like $0 and a |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 633 | // Decl whose name is $__lldb_expr_result. This condition is handled in |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 634 | // ClangExpressionDeclMap::DoMaterialize, and the name of the variable is |
| 635 | // fixed up. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 636 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 637 | ConstantInt *new_constant_int = ConstantInt::get(llvm::Type::getInt64Ty(m_module->getContext()), |
Sean Callanan | 63697e5 | 2011-05-07 01:06:41 +0000 | [diff] [blame] | 638 | reinterpret_cast<uint64_t>(result_decl), |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 639 | false); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 640 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 641 | llvm::Value* values[2]; |
| 642 | values[0] = new_result_global; |
| 643 | values[1] = new_constant_int; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 644 | |
Sean Callanan | d12cf8bb | 2011-05-15 22:34:38 +0000 | [diff] [blame] | 645 | ArrayRef<Value*> value_ref(values, 2); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 646 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 647 | MDNode *persistent_global_md = MDNode::get(m_module->getContext(), value_ref); |
| 648 | NamedMDNode *named_metadata = m_module->getNamedMetadata("clang.global.decl.ptrs"); |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 649 | named_metadata->addOperand(persistent_global_md); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 650 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 651 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 652 | log->Printf("Replacing \"%s\" with \"%s\"", |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 653 | PrintValue(result_global).c_str(), |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 654 | PrintValue(new_result_global).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 655 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 656 | if (result_global->use_empty()) |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 657 | { |
| 658 | // We need to synthesize a store for this variable, because otherwise |
| 659 | // there's nothing to put into its equivalent persistent variable. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 660 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 661 | BasicBlock &entry_block(llvm_function.getEntryBlock()); |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 662 | Instruction *first_entry_instruction(entry_block.getFirstNonPHIOrDbg()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 663 | |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 664 | if (!first_entry_instruction) |
| 665 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 666 | |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 667 | if (!result_global->hasInitializer()) |
| 668 | { |
| 669 | if (log) |
| 670 | log->Printf("Couldn't find initializer for unused variable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 671 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 672 | if (m_error_stream) |
| 673 | m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) has no writes and no initializer\n", result_name); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 674 | |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 675 | return false; |
| 676 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 677 | |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 678 | Constant *initializer = result_global->getInitializer(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 679 | |
Greg Clayton | 9c13931 | 2011-02-05 02:28:58 +0000 | [diff] [blame] | 680 | StoreInst *synthesized_store = new StoreInst(initializer, |
| 681 | new_result_global, |
| 682 | first_entry_instruction); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 683 | |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 684 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 685 | log->Printf("Synthesized result store \"%s\"\n", PrintValue(synthesized_store).c_str()); |
Sean Callanan | 1e87fff | 2010-09-07 22:43:19 +0000 | [diff] [blame] | 686 | } |
| 687 | else |
| 688 | { |
| 689 | result_global->replaceAllUsesWith(new_result_global); |
| 690 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 691 | |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 692 | if (!m_decl_map->AddPersistentVariable(result_decl, |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 693 | m_result_name, |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 694 | m_result_type, |
| 695 | true, |
| 696 | m_result_is_pointer)) |
| 697 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 698 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 699 | result_global->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 700 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 701 | return true; |
| 702 | } |
| 703 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 704 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 705 | IRForTarget::RewriteObjCConstString (llvm::GlobalVariable *ns_str, |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 706 | llvm::GlobalVariable *cstr) |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 707 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 708 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 709 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 710 | Type *ns_str_ty = ns_str->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 711 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 712 | Type *i8_ptr_ty = Type::getInt8PtrTy(m_module->getContext()); |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 713 | Type *i32_ty = Type::getInt32Ty(m_module->getContext()); |
| 714 | Type *i8_ty = Type::getInt8Ty(m_module->getContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 715 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 716 | if (!m_CFStringCreateWithBytes) |
| 717 | { |
| 718 | lldb::addr_t CFStringCreateWithBytes_addr; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 719 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 720 | static lldb_private::ConstString g_CFStringCreateWithBytes_str ("CFStringCreateWithBytes"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 721 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 722 | if (!m_decl_map->GetFunctionAddress (g_CFStringCreateWithBytes_str, CFStringCreateWithBytes_addr)) |
| 723 | { |
| 724 | if (log) |
| 725 | log->PutCString("Couldn't find CFStringCreateWithBytes in the target"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 726 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 727 | if (m_error_stream) |
| 728 | m_error_stream->Printf("Error [IRForTarget]: Rewriting an Objective-C constant string requires CFStringCreateWithBytes\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 729 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 730 | return false; |
| 731 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 732 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 733 | if (log) |
Daniel Malea | d01b295 | 2012-11-29 21:49:15 +0000 | [diff] [blame] | 734 | log->Printf("Found CFStringCreateWithBytes at 0x%" PRIx64, CFStringCreateWithBytes_addr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 735 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 736 | // Build the function type: |
| 737 | // |
| 738 | // CFStringRef CFStringCreateWithBytes ( |
| 739 | // CFAllocatorRef alloc, |
| 740 | // const UInt8 *bytes, |
| 741 | // CFIndex numBytes, |
| 742 | // CFStringEncoding encoding, |
| 743 | // Boolean isExternalRepresentation |
| 744 | // ); |
| 745 | // |
| 746 | // We make the following substitutions: |
| 747 | // |
| 748 | // CFStringRef -> i8* |
| 749 | // CFAllocatorRef -> i8* |
| 750 | // UInt8 * -> i8* |
| 751 | // CFIndex -> long (i32 or i64, as appropriate; we ask the module for its pointer size for now) |
| 752 | // CFStringEncoding -> i32 |
| 753 | // Boolean -> i8 |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 754 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 755 | Type *arg_type_array[5]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 756 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 757 | arg_type_array[0] = i8_ptr_ty; |
| 758 | arg_type_array[1] = i8_ptr_ty; |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 759 | arg_type_array[2] = m_intptr_ty; |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 760 | arg_type_array[3] = i32_ty; |
| 761 | arg_type_array[4] = i8_ty; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 762 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 763 | ArrayRef<Type *> CFSCWB_arg_types(arg_type_array, 5); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 764 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 765 | llvm::Type *CFSCWB_ty = FunctionType::get(ns_str_ty, CFSCWB_arg_types, false); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 766 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 767 | // Build the constant containing the pointer to the function |
| 768 | PointerType *CFSCWB_ptr_ty = PointerType::getUnqual(CFSCWB_ty); |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 769 | Constant *CFSCWB_addr_int = ConstantInt::get(m_intptr_ty, CFStringCreateWithBytes_addr, false); |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 770 | m_CFStringCreateWithBytes = ConstantExpr::getIntToPtr(CFSCWB_addr_int, CFSCWB_ptr_ty); |
| 771 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 772 | |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 773 | ConstantDataSequential *string_array = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 774 | |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 775 | if (cstr) |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 776 | string_array = dyn_cast<ConstantDataSequential>(cstr->getInitializer()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 777 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 778 | Constant *alloc_arg = Constant::getNullValue(i8_ptr_ty); |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 779 | Constant *bytes_arg = cstr ? ConstantExpr::getBitCast(cstr, i8_ptr_ty) : Constant::getNullValue(i8_ptr_ty); |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 780 | Constant *numBytes_arg = ConstantInt::get(m_intptr_ty, cstr ? string_array->getNumElements() - 1 : 0, false); |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 781 | Constant *encoding_arg = ConstantInt::get(i32_ty, 0x0600, false); /* 0x0600 is kCFStringEncodingASCII */ |
| 782 | Constant *isExternal_arg = ConstantInt::get(i8_ty, 0x0, false); /* 0x0 is false */ |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 783 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 784 | Value *argument_array[5]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 785 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 786 | argument_array[0] = alloc_arg; |
| 787 | argument_array[1] = bytes_arg; |
| 788 | argument_array[2] = numBytes_arg; |
| 789 | argument_array[3] = encoding_arg; |
| 790 | argument_array[4] = isExternal_arg; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 791 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 792 | ArrayRef <Value *> CFSCWB_arguments(argument_array, 5); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 793 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 794 | FunctionValueCache CFSCWB_Caller ([this, &CFSCWB_arguments] (llvm::Function *function)->llvm::Value * { |
| 795 | return CallInst::Create(m_CFStringCreateWithBytes, |
| 796 | CFSCWB_arguments, |
| 797 | "CFStringCreateWithBytes", |
| 798 | llvm::cast<Instruction>(m_entry_instruction_finder.GetValue(function))); |
| 799 | }); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 800 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 801 | if (!UnfoldConstant(ns_str, CFSCWB_Caller, m_entry_instruction_finder)) |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 802 | { |
| 803 | if (log) |
| 804 | log->PutCString("Couldn't replace the NSString with the result of the call"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 805 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 806 | if (m_error_stream) |
| 807 | m_error_stream->Printf("Error [IRForTarget]: Couldn't replace an Objective-C constant string with a dynamic string\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 808 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 809 | return false; |
| 810 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 811 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 812 | ns_str->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 813 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 814 | return true; |
| 815 | } |
| 816 | |
| 817 | bool |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 818 | IRForTarget::RewriteObjCConstStrings() |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 819 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 820 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 821 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 822 | ValueSymbolTable& value_symbol_table = m_module->getValueSymbolTable(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 823 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 824 | for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end(); |
| 825 | vi != ve; |
| 826 | ++vi) |
| 827 | { |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 828 | std::string value_name = vi->first().str(); |
| 829 | const char *value_name_cstr = value_name.c_str(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 830 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 831 | if (strstr(value_name_cstr, "_unnamed_cfstring_")) |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 832 | { |
| 833 | Value *nsstring_value = vi->second; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 834 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 835 | GlobalVariable *nsstring_global = dyn_cast<GlobalVariable>(nsstring_value); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 836 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 837 | if (!nsstring_global) |
| 838 | { |
| 839 | if (log) |
| 840 | log->PutCString("NSString variable is not a GlobalVariable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 841 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 842 | if (m_error_stream) |
| 843 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string is not a global variable\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 844 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 845 | return false; |
| 846 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 847 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 848 | if (!nsstring_global->hasInitializer()) |
| 849 | { |
| 850 | if (log) |
| 851 | log->PutCString("NSString variable does not have an initializer"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 852 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 853 | if (m_error_stream) |
| 854 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string does not have an initializer\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 855 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 856 | return false; |
| 857 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 858 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 859 | ConstantStruct *nsstring_struct = dyn_cast<ConstantStruct>(nsstring_global->getInitializer()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 860 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 861 | if (!nsstring_struct) |
| 862 | { |
| 863 | if (log) |
| 864 | log->PutCString("NSString variable's initializer is not a ConstantStruct"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 865 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 866 | if (m_error_stream) |
| 867 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string is not a structure constant\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 868 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 869 | return false; |
| 870 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 871 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 872 | // We expect the following structure: |
| 873 | // |
| 874 | // struct { |
| 875 | // int *isa; |
| 876 | // int flags; |
| 877 | // char *str; |
| 878 | // long length; |
| 879 | // }; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 880 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 881 | if (nsstring_struct->getNumOperands() != 4) |
| 882 | { |
| 883 | if (log) |
| 884 | log->Printf("NSString variable's initializer structure has an unexpected number of members. Should be 4, is %d", nsstring_struct->getNumOperands()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 885 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 886 | if (m_error_stream) |
| 887 | m_error_stream->Printf("Internal error [IRForTarget]: The struct for an Objective-C constant string is not as expected\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 888 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 889 | return false; |
| 890 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 891 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 892 | Constant *nsstring_member = nsstring_struct->getOperand(2); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 893 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 894 | if (!nsstring_member) |
| 895 | { |
| 896 | if (log) |
| 897 | log->PutCString("NSString initializer's str element was empty"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 898 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 899 | if (m_error_stream) |
| 900 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string does not have a string initializer\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 901 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 902 | return false; |
| 903 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 904 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 905 | ConstantExpr *nsstring_expr = dyn_cast<ConstantExpr>(nsstring_member); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 906 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 907 | if (!nsstring_expr) |
| 908 | { |
| 909 | if (log) |
| 910 | log->PutCString("NSString initializer's str element is not a ConstantExpr"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 911 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 912 | if (m_error_stream) |
| 913 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer is not constant\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 914 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 915 | return false; |
| 916 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 917 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 918 | if (nsstring_expr->getOpcode() != Instruction::GetElementPtr) |
| 919 | { |
| 920 | if (log) |
| 921 | log->Printf("NSString initializer's str element is not a GetElementPtr expression, it's a %s", nsstring_expr->getOpcodeName()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 922 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 923 | if (m_error_stream) |
| 924 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer is not an array\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 925 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 926 | return false; |
| 927 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 928 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 929 | Constant *nsstring_cstr = nsstring_expr->getOperand(0); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 930 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 931 | GlobalVariable *cstr_global = dyn_cast<GlobalVariable>(nsstring_cstr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 932 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 933 | if (!cstr_global) |
| 934 | { |
| 935 | if (log) |
| 936 | log->PutCString("NSString initializer's str element is not a GlobalVariable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 937 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 938 | if (m_error_stream) |
| 939 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to a global\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 940 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 941 | return false; |
| 942 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 943 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 944 | if (!cstr_global->hasInitializer()) |
| 945 | { |
| 946 | if (log) |
| 947 | log->PutCString("NSString initializer's str element does not have an initializer"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 948 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 949 | if (m_error_stream) |
| 950 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to initialized data\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 951 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 952 | return false; |
| 953 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 954 | |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 955 | /* |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 956 | if (!cstr_array) |
| 957 | { |
| 958 | if (log) |
| 959 | log->PutCString("NSString initializer's str element is not a ConstantArray"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 960 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 961 | if (m_error_stream) |
| 962 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to an array\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 963 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 964 | return false; |
| 965 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 966 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 967 | if (!cstr_array->isCString()) |
| 968 | { |
| 969 | if (log) |
| 970 | log->PutCString("NSString initializer's str element is not a C string array"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 971 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 972 | if (m_error_stream) |
| 973 | m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to a C string\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 974 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 975 | return false; |
| 976 | } |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 977 | */ |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 978 | |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 979 | ConstantDataArray *cstr_array = dyn_cast<ConstantDataArray>(cstr_global->getInitializer()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 980 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 981 | if (log) |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 982 | { |
| 983 | if (cstr_array) |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 984 | log->Printf("Found NSString constant %s, which contains \"%s\"", value_name_cstr, cstr_array->getAsString().str().c_str()); |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 985 | else |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 986 | log->Printf("Found NSString constant %s, which contains \"\"", value_name_cstr); |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 987 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 988 | |
Sean Callanan | 229ce2d | 2011-02-10 22:17:53 +0000 | [diff] [blame] | 989 | if (!cstr_array) |
| 990 | cstr_global = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 991 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 992 | if (!RewriteObjCConstString(nsstring_global, cstr_global)) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 993 | { |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 994 | if (log) |
| 995 | log->PutCString("Error rewriting the constant string"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 996 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 997 | // We don't print an error message here because RewriteObjCConstString has done so for us. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 998 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 999 | return false; |
| 1000 | } |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1001 | } |
| 1002 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1003 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1004 | for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end(); |
| 1005 | vi != ve; |
| 1006 | ++vi) |
| 1007 | { |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1008 | std::string value_name = vi->first().str(); |
| 1009 | const char *value_name_cstr = value_name.c_str(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1010 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1011 | if (!strcmp(value_name_cstr, "__CFConstantStringClassReference")) |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1012 | { |
| 1013 | GlobalVariable *gv = dyn_cast<GlobalVariable>(vi->second); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1014 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1015 | if (!gv) |
| 1016 | { |
| 1017 | if (log) |
| 1018 | log->PutCString("__CFConstantStringClassReference is not a global variable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1019 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1020 | if (m_error_stream) |
| 1021 | m_error_stream->Printf("Internal error [IRForTarget]: Found a CFConstantStringClassReference, but it is not a global object\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1022 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1023 | return false; |
| 1024 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1025 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1026 | gv->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1027 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1028 | break; |
| 1029 | } |
| 1030 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1031 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1032 | return true; |
| 1033 | } |
| 1034 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1035 | static bool IsObjCSelectorRef (Value *value) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1036 | { |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1037 | GlobalVariable *global_variable = dyn_cast<GlobalVariable>(value); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1038 | |
Greg Clayton | bd54916 | 2014-11-10 21:45:59 +0000 | [diff] [blame] | 1039 | if (!global_variable || !global_variable->hasName() || !global_variable->getName().startswith("OBJC_SELECTOR_REFERENCES_")) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1040 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1041 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1042 | return true; |
| 1043 | } |
| 1044 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1045 | // This function does not report errors; its callers are responsible. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1046 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1047 | IRForTarget::RewriteObjCSelector (Instruction* selector_load) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1048 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1049 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1050 | |
| 1051 | LoadInst *load = dyn_cast<LoadInst>(selector_load); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1052 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1053 | if (!load) |
| 1054 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1055 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1056 | // Unpack the message name from the selector. In LLVM IR, an objc_msgSend gets represented as |
| 1057 | // |
Greg Clayton | 45f4f8b | 2014-11-10 21:48:12 +0000 | [diff] [blame^] | 1058 | // %tmp = load i8** @"OBJC_SELECTOR_REFERENCES_" ; <i8*> |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1059 | // %call = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %obj, i8* %tmp, ...) ; <i8*> |
| 1060 | // |
| 1061 | // where %obj is the object pointer and %tmp is the selector. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1062 | // |
Greg Clayton | 45f4f8b | 2014-11-10 21:48:12 +0000 | [diff] [blame^] | 1063 | // @"OBJC_SELECTOR_REFERENCES_" is a pointer to a character array called @"\01L_OBJC_llvm_moduleETH_VAR_NAllvm_moduleE_". |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1064 | // @"\01L_OBJC_llvm_moduleETH_VAR_NAllvm_moduleE_" contains the string. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1065 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1066 | // Find the pointer's initializer (a ConstantExpr with opcode GetElementPtr) and get the string from its target |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1067 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1068 | GlobalVariable *_objc_selector_references_ = dyn_cast<GlobalVariable>(load->getPointerOperand()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1069 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1070 | if (!_objc_selector_references_ || !_objc_selector_references_->hasInitializer()) |
| 1071 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1072 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1073 | Constant *osr_initializer = _objc_selector_references_->getInitializer(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1074 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1075 | ConstantExpr *osr_initializer_expr = dyn_cast<ConstantExpr>(osr_initializer); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1076 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1077 | if (!osr_initializer_expr || osr_initializer_expr->getOpcode() != Instruction::GetElementPtr) |
| 1078 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1079 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1080 | Value *osr_initializer_base = osr_initializer_expr->getOperand(0); |
| 1081 | |
| 1082 | if (!osr_initializer_base) |
| 1083 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1084 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1085 | // Find the string's initializer (a ConstantArray) and get the string from it |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1086 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1087 | GlobalVariable *_objc_meth_var_name_ = dyn_cast<GlobalVariable>(osr_initializer_base); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1088 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1089 | if (!_objc_meth_var_name_ || !_objc_meth_var_name_->hasInitializer()) |
| 1090 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1091 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1092 | Constant *omvn_initializer = _objc_meth_var_name_->getInitializer(); |
| 1093 | |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1094 | ConstantDataArray *omvn_initializer_array = dyn_cast<ConstantDataArray>(omvn_initializer); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1095 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1096 | if (!omvn_initializer_array->isString()) |
| 1097 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1098 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1099 | std::string omvn_initializer_string = omvn_initializer_array->getAsString(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1100 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1101 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 1102 | log->Printf("Found Objective-C selector reference \"%s\"", omvn_initializer_string.c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1103 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1104 | // Construct a call to sel_registerName |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1105 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1106 | if (!m_sel_registerName) |
| 1107 | { |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 1108 | lldb::addr_t sel_registerName_addr; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1109 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 1110 | static lldb_private::ConstString g_sel_registerName_str ("sel_registerName"); |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 1111 | if (!m_decl_map->GetFunctionAddress (g_sel_registerName_str, sel_registerName_addr)) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1112 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1113 | |
Sean Callanan | be3a1b1 | 2010-10-26 00:31:56 +0000 | [diff] [blame] | 1114 | if (log) |
Daniel Malea | d01b295 | 2012-11-29 21:49:15 +0000 | [diff] [blame] | 1115 | log->Printf("Found sel_registerName at 0x%" PRIx64, sel_registerName_addr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1116 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1117 | // Build the function type: struct objc_selector *sel_registerName(uint8_t*) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1118 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1119 | // The below code would be "more correct," but in actuality what's required is uint8_t* |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1120 | //Type *sel_type = StructType::get(m_module->getContext()); |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1121 | //Type *sel_ptr_type = PointerType::getUnqual(sel_type); |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1122 | Type *sel_ptr_type = Type::getInt8PtrTy(m_module->getContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1123 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1124 | Type *type_array[1]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1125 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1126 | type_array[0] = llvm::Type::getInt8PtrTy(m_module->getContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1127 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1128 | ArrayRef<Type *> srN_arg_types(type_array, 1); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1129 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1130 | llvm::Type *srN_type = FunctionType::get(sel_ptr_type, srN_arg_types, false); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1131 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1132 | // Build the constant containing the pointer to the function |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1133 | PointerType *srN_ptr_ty = PointerType::getUnqual(srN_type); |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 1134 | Constant *srN_addr_int = ConstantInt::get(m_intptr_ty, sel_registerName_addr, false); |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1135 | m_sel_registerName = ConstantExpr::getIntToPtr(srN_addr_int, srN_ptr_ty); |
| 1136 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1137 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1138 | Value *argument_array[1]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1139 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1140 | Constant *omvn_pointer = ConstantExpr::getBitCast(_objc_meth_var_name_, Type::getInt8PtrTy(m_module->getContext())); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1141 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1142 | argument_array[0] = omvn_pointer; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1143 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1144 | ArrayRef<Value *> srN_arguments(argument_array, 1); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1145 | |
| 1146 | CallInst *srN_call = CallInst::Create(m_sel_registerName, |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1147 | srN_arguments, |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1148 | "sel_registerName", |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1149 | selector_load); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1150 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1151 | // Replace the load with the call in all users |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1152 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1153 | selector_load->replaceAllUsesWith(srN_call); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1154 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1155 | selector_load->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1156 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1157 | return true; |
| 1158 | } |
| 1159 | |
| 1160 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1161 | IRForTarget::RewriteObjCSelectors (BasicBlock &basic_block) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1162 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1163 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1164 | |
| 1165 | BasicBlock::iterator ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1166 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1167 | typedef SmallVector <Instruction*, 2> InstrList; |
| 1168 | typedef InstrList::iterator InstrIterator; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1169 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1170 | InstrList selector_loads; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1171 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1172 | for (ii = basic_block.begin(); |
| 1173 | ii != basic_block.end(); |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1174 | ++ii) |
| 1175 | { |
| 1176 | Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1177 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1178 | if (LoadInst *load = dyn_cast<LoadInst>(&inst)) |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1179 | if (IsObjCSelectorRef(load->getPointerOperand())) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1180 | selector_loads.push_back(&inst); |
| 1181 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1182 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1183 | InstrIterator iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1184 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1185 | for (iter = selector_loads.begin(); |
| 1186 | iter != selector_loads.end(); |
| 1187 | ++iter) |
| 1188 | { |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1189 | if (!RewriteObjCSelector(*iter)) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1190 | { |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1191 | if (m_error_stream) |
| 1192 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't change a static reference to an Objective-C selector to a dynamic reference\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1193 | |
Enrico Granata | 20edcdb | 2011-07-19 18:03:25 +0000 | [diff] [blame] | 1194 | if (log) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1195 | log->PutCString("Couldn't rewrite a reference to an Objective-C selector"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1196 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1197 | return false; |
| 1198 | } |
| 1199 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1200 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1201 | return true; |
| 1202 | } |
| 1203 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1204 | // This function does not report errors; its callers are responsible. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1205 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1206 | IRForTarget::RewritePersistentAlloc (llvm::Instruction *persistent_alloc) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1207 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1208 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1209 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1210 | AllocaInst *alloc = dyn_cast<AllocaInst>(persistent_alloc); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1211 | |
Ed Maste | d455a1e | 2014-11-02 00:24:22 +0000 | [diff] [blame] | 1212 | MDNode *alloc_md = alloc->getMDNode("clang.decl.ptr"); |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1213 | |
| 1214 | if (!alloc_md || !alloc_md->getNumOperands()) |
| 1215 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1216 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1217 | ConstantInt *constant_int = dyn_cast<ConstantInt>(alloc_md->getOperand(0)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1218 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1219 | if (!constant_int) |
| 1220 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1221 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1222 | // We attempt to register this as a new persistent variable with the DeclMap. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1223 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1224 | uintptr_t ptr = constant_int->getZExtValue(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1225 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 1226 | clang::VarDecl *decl = reinterpret_cast<clang::VarDecl *>(ptr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1227 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 1228 | lldb_private::TypeFromParser result_decl_type (decl->getType().getAsOpaquePtr(), |
| 1229 | &decl->getASTContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1230 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 1231 | StringRef decl_name (decl->getName()); |
| 1232 | lldb_private::ConstString persistent_variable_name (decl_name.data(), decl_name.size()); |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 1233 | if (!m_decl_map->AddPersistentVariable(decl, persistent_variable_name, result_decl_type, false, false)) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1234 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1235 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1236 | GlobalVariable *persistent_global = new GlobalVariable((*m_module), |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1237 | alloc->getType(), |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1238 | false, /* not constant */ |
| 1239 | GlobalValue::ExternalLinkage, |
| 1240 | NULL, /* no initializer */ |
| 1241 | alloc->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1242 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1243 | // What we're going to do here is make believe this was a regular old external |
| 1244 | // variable. That means we need to make the metadata valid. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1245 | |
Sean Callanan | 585c0ec8 | 2012-07-04 01:26:26 +0000 | [diff] [blame] | 1246 | NamedMDNode *named_metadata = m_module->getOrInsertNamedMetadata("clang.global.decl.ptrs"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1247 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1248 | llvm::Value* values[2]; |
| 1249 | values[0] = persistent_global; |
| 1250 | values[1] = constant_int; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1251 | |
Sean Callanan | d12cf8bb | 2011-05-15 22:34:38 +0000 | [diff] [blame] | 1252 | ArrayRef<llvm::Value*> value_ref(values, 2); |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1253 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1254 | MDNode *persistent_global_md = MDNode::get(m_module->getContext(), value_ref); |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1255 | named_metadata->addOperand(persistent_global_md); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1256 | |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1257 | // Now, since the variable is a pointer variable, we will drop in a load of that |
| 1258 | // pointer variable. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1259 | |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1260 | LoadInst *persistent_load = new LoadInst (persistent_global, "", alloc); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1261 | |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1262 | if (log) |
| 1263 | log->Printf("Replacing \"%s\" with \"%s\"", |
| 1264 | PrintValue(alloc).c_str(), |
| 1265 | PrintValue(persistent_load).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1266 | |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1267 | alloc->replaceAllUsesWith(persistent_load); |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1268 | alloc->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1269 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1270 | return true; |
| 1271 | } |
| 1272 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1273 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1274 | IRForTarget::RewritePersistentAllocs(llvm::BasicBlock &basic_block) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1275 | { |
Sean Callanan | 9e6ed53 | 2010-09-13 21:34:21 +0000 | [diff] [blame] | 1276 | if (!m_resolve_vars) |
| 1277 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1278 | |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1279 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1280 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1281 | BasicBlock::iterator ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1282 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1283 | typedef SmallVector <Instruction*, 2> InstrList; |
| 1284 | typedef InstrList::iterator InstrIterator; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1285 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1286 | InstrList pvar_allocs; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1287 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1288 | for (ii = basic_block.begin(); |
| 1289 | ii != basic_block.end(); |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1290 | ++ii) |
| 1291 | { |
| 1292 | Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1293 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1294 | if (AllocaInst *alloc = dyn_cast<AllocaInst>(&inst)) |
Sean Callanan | f694a55 | 2011-01-21 22:30:25 +0000 | [diff] [blame] | 1295 | { |
| 1296 | llvm::StringRef alloc_name = alloc->getName(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1297 | |
Sean Callanan | f694a55 | 2011-01-21 22:30:25 +0000 | [diff] [blame] | 1298 | if (alloc_name.startswith("$") && |
| 1299 | !alloc_name.startswith("$__lldb")) |
| 1300 | { |
| 1301 | if (alloc_name.find_first_of("0123456789") == 1) |
| 1302 | { |
| 1303 | if (log) |
| 1304 | log->Printf("Rejecting a numeric persistent variable."); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1305 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1306 | if (m_error_stream) |
| 1307 | m_error_stream->Printf("Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1308 | |
Sean Callanan | f694a55 | 2011-01-21 22:30:25 +0000 | [diff] [blame] | 1309 | return false; |
| 1310 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1311 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1312 | pvar_allocs.push_back(alloc); |
Sean Callanan | f694a55 | 2011-01-21 22:30:25 +0000 | [diff] [blame] | 1313 | } |
| 1314 | } |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1315 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1316 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1317 | InstrIterator iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1318 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1319 | for (iter = pvar_allocs.begin(); |
| 1320 | iter != pvar_allocs.end(); |
| 1321 | ++iter) |
| 1322 | { |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1323 | if (!RewritePersistentAlloc(*iter)) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1324 | { |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1325 | if (m_error_stream) |
| 1326 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite the creation of a persistent variable\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1327 | |
Enrico Granata | 20edcdb | 2011-07-19 18:03:25 +0000 | [diff] [blame] | 1328 | if (log) |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1329 | log->PutCString("Couldn't rewrite the creation of a persistent variable"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1330 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1331 | return false; |
| 1332 | } |
| 1333 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1334 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 1335 | return true; |
| 1336 | } |
| 1337 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1338 | bool |
| 1339 | IRForTarget::MaterializeInitializer (uint8_t *data, Constant *initializer) |
| 1340 | { |
| 1341 | if (!initializer) |
| 1342 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1343 | |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1344 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1345 | |
| 1346 | if (log && log->GetVerbose()) |
| 1347 | log->Printf(" MaterializeInitializer(%p, %s)", data, PrintValue(initializer).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1348 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1349 | Type *initializer_type = initializer->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1350 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1351 | if (ConstantInt *int_initializer = dyn_cast<ConstantInt>(initializer)) |
| 1352 | { |
| 1353 | memcpy (data, int_initializer->getValue().getRawData(), m_target_data->getTypeStoreSize(initializer_type)); |
| 1354 | return true; |
| 1355 | } |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1356 | else if (ConstantDataArray *array_initializer = dyn_cast<ConstantDataArray>(initializer)) |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1357 | { |
| 1358 | if (array_initializer->isString()) |
| 1359 | { |
| 1360 | std::string array_initializer_string = array_initializer->getAsString(); |
| 1361 | memcpy (data, array_initializer_string.c_str(), m_target_data->getTypeStoreSize(initializer_type)); |
| 1362 | } |
| 1363 | else |
| 1364 | { |
| 1365 | ArrayType *array_initializer_type = array_initializer->getType(); |
| 1366 | Type *array_element_type = array_initializer_type->getElementType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1367 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1368 | size_t element_size = m_target_data->getTypeAllocSize(array_element_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1369 | |
Andy Gibbs | a297a97 | 2013-06-19 19:04:53 +0000 | [diff] [blame] | 1370 | for (unsigned i = 0; i < array_initializer->getNumOperands(); ++i) |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1371 | { |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1372 | Value *operand_value = array_initializer->getOperand(i); |
| 1373 | Constant *operand_constant = dyn_cast<Constant>(operand_value); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1374 | |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1375 | if (!operand_constant) |
| 1376 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1377 | |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1378 | if (!MaterializeInitializer(data + (i * element_size), operand_constant)) |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1379 | return false; |
| 1380 | } |
| 1381 | } |
| 1382 | return true; |
| 1383 | } |
| 1384 | else if (ConstantStruct *struct_initializer = dyn_cast<ConstantStruct>(initializer)) |
| 1385 | { |
| 1386 | StructType *struct_initializer_type = struct_initializer->getType(); |
| 1387 | const StructLayout *struct_layout = m_target_data->getStructLayout(struct_initializer_type); |
| 1388 | |
Andy Gibbs | a297a97 | 2013-06-19 19:04:53 +0000 | [diff] [blame] | 1389 | for (unsigned i = 0; |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1390 | i < struct_initializer->getNumOperands(); |
| 1391 | ++i) |
| 1392 | { |
| 1393 | if (!MaterializeInitializer(data + struct_layout->getElementOffset(i), struct_initializer->getOperand(i))) |
| 1394 | return false; |
| 1395 | } |
| 1396 | return true; |
| 1397 | } |
Sean Callanan | 76ee3e7 | 2013-04-24 19:50:12 +0000 | [diff] [blame] | 1398 | else if (isa<ConstantAggregateZero>(initializer)) |
| 1399 | { |
| 1400 | memset(data, 0, m_target_data->getTypeStoreSize(initializer_type)); |
| 1401 | return true; |
| 1402 | } |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1403 | return false; |
| 1404 | } |
| 1405 | |
| 1406 | bool |
| 1407 | IRForTarget::MaterializeInternalVariable (GlobalVariable *global_variable) |
| 1408 | { |
| 1409 | if (GlobalVariable::isExternalLinkage(global_variable->getLinkage())) |
| 1410 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1411 | |
Sean Callanan | fe5d139 | 2011-11-15 19:13:54 +0000 | [diff] [blame] | 1412 | if (global_variable == m_reloc_placeholder) |
| 1413 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1414 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 1415 | uint64_t offset = m_data_allocator.GetStream().GetSize(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1416 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1417 | llvm::Type *variable_type = global_variable->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1418 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1419 | Constant *initializer = global_variable->getInitializer(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1420 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1421 | llvm::Type *initializer_type = initializer->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1422 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1423 | size_t size = m_target_data->getTypeAllocSize(initializer_type); |
Sean Callanan | e3333d6 | 2012-06-08 22:20:41 +0000 | [diff] [blame] | 1424 | size_t align = m_target_data->getPrefTypeAlignment(initializer_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1425 | |
Sean Callanan | e3333d6 | 2012-06-08 22:20:41 +0000 | [diff] [blame] | 1426 | const size_t mask = (align - 1); |
| 1427 | uint64_t aligned_offset = (offset + mask) & ~mask; |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 1428 | m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0); |
Sean Callanan | e3333d6 | 2012-06-08 22:20:41 +0000 | [diff] [blame] | 1429 | offset = aligned_offset; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1430 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1431 | lldb_private::DataBufferHeap data(size, '\0'); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1432 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1433 | if (initializer) |
| 1434 | if (!MaterializeInitializer(data.GetBytes(), initializer)) |
| 1435 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1436 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 1437 | m_data_allocator.GetStream().Write(data.GetBytes(), data.GetByteSize()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1438 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1439 | Constant *new_pointer = BuildRelocation(variable_type, offset); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1440 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1441 | global_variable->replaceAllUsesWith(new_pointer); |
| 1442 | |
| 1443 | global_variable->eraseFromParent(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1444 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1445 | return true; |
| 1446 | } |
| 1447 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1448 | // This function does not report errors; its callers are responsible. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1449 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1450 | IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 1451 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1452 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1453 | |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1454 | if (log) |
Sean Callanan | 88339f0 | 2010-12-06 22:16:55 +0000 | [diff] [blame] | 1455 | log->Printf("MaybeHandleVariable (%s)", PrintValue(llvm_value_ptr).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1456 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 1457 | if (ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(llvm_value_ptr)) |
Sean Callanan | 4cf04d2 | 2010-08-03 00:23:29 +0000 | [diff] [blame] | 1458 | { |
Sean Callanan | 5666b67 | 2010-08-04 01:02:13 +0000 | [diff] [blame] | 1459 | switch (constant_expr->getOpcode()) |
Sean Callanan | 4cf04d2 | 2010-08-03 00:23:29 +0000 | [diff] [blame] | 1460 | { |
Sean Callanan | 5666b67 | 2010-08-04 01:02:13 +0000 | [diff] [blame] | 1461 | default: |
| 1462 | break; |
| 1463 | case Instruction::GetElementPtr: |
| 1464 | case Instruction::BitCast: |
Sean Callanan | 4cf04d2 | 2010-08-03 00:23:29 +0000 | [diff] [blame] | 1465 | Value *s = constant_expr->getOperand(0); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1466 | if (!MaybeHandleVariable(s)) |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1467 | return false; |
Sean Callanan | 4cf04d2 | 2010-08-03 00:23:29 +0000 | [diff] [blame] | 1468 | } |
| 1469 | } |
Sean Callanan | d6e04ae | 2010-12-03 19:51:05 +0000 | [diff] [blame] | 1470 | else if (GlobalVariable *global_variable = dyn_cast<GlobalVariable>(llvm_value_ptr)) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1471 | { |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 1472 | if (!GlobalValue::isExternalLinkage(global_variable->getLinkage())) |
| 1473 | return MaterializeInternalVariable(global_variable); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1474 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1475 | clang::NamedDecl *named_decl = DeclForGlobal(global_variable); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1476 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1477 | if (!named_decl) |
| 1478 | { |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1479 | if (IsObjCSelectorRef(llvm_value_ptr)) |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1480 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1481 | |
Sean Callanan | 14f0b0e | 2010-12-06 00:56:39 +0000 | [diff] [blame] | 1482 | if (!global_variable->hasExternalLinkage()) |
| 1483 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1484 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1485 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 1486 | log->Printf("Found global variable \"%s\" without metadata", global_variable->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1487 | |
Sean Callanan | 5300d37 | 2010-07-31 01:32:05 +0000 | [diff] [blame] | 1488 | return false; |
| 1489 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1490 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 1491 | std::string name (named_decl->getName().str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1492 | |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1493 | clang::ValueDecl *value_decl = dyn_cast<clang::ValueDecl>(named_decl); |
| 1494 | if (value_decl == NULL) |
Sean Callanan | ea22d42 | 2010-07-16 00:09:46 +0000 | [diff] [blame] | 1495 | return false; |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1496 | |
| 1497 | lldb_private::ClangASTType clang_type(&value_decl->getASTContext(), value_decl->getType()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1498 | |
Sean Callanan | 77eaf44 | 2011-07-08 00:39:14 +0000 | [diff] [blame] | 1499 | const Type *value_type = NULL; |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1500 | |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1501 | if (name[0] == '$') |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 1502 | { |
| 1503 | // The $__lldb_expr_result name indicates the the return value has allocated as |
| 1504 | // a static variable. Per the comment at ASTResultSynthesizer::SynthesizeBodyResult, |
| 1505 | // accesses to this static variable need to be redirected to the result of dereferencing |
| 1506 | // a pointer that is passed in as one of the arguments. |
| 1507 | // |
| 1508 | // Consequently, when reporting the size of the type, we report a pointer type pointing |
| 1509 | // to the type of $__lldb_expr_result, not the type itself. |
Sean Callanan | e1175b7 | 2011-01-13 21:23:32 +0000 | [diff] [blame] | 1510 | // |
| 1511 | // We also do this for any user-declared persistent variables. |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1512 | clang_type = clang_type.GetPointerType(); |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 1513 | value_type = PointerType::get(global_variable->getType(), 0); |
| 1514 | } |
| 1515 | else |
| 1516 | { |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 1517 | value_type = global_variable->getType(); |
| 1518 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1519 | |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1520 | const uint64_t value_size = clang_type.GetByteSize(); |
Zachary Turner | a746e8e | 2014-07-02 17:24:07 +0000 | [diff] [blame] | 1521 | lldb::offset_t value_alignment = (clang_type.GetTypeBitAlign() + 7ull) / 8ull; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1522 | |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 1523 | if (log) |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1524 | { |
Zachary Turner | a746e8e | 2014-07-02 17:24:07 +0000 | [diff] [blame] | 1525 | log->Printf("Type of \"%s\" is [clang \"%s\", llvm \"%s\"] [size %" PRIu64 ", align %" PRIu64 "]", |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1526 | name.c_str(), |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1527 | clang_type.GetQualType().getAsString().c_str(), |
| 1528 | PrintType(value_type).c_str(), |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1529 | value_size, |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 1530 | value_alignment); |
Greg Clayton | 57ee306 | 2013-07-11 22:46:58 +0000 | [diff] [blame] | 1531 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1532 | |
| 1533 | |
Sean Callanan | 64dfc9a | 2010-08-23 23:09:38 +0000 | [diff] [blame] | 1534 | if (named_decl && !m_decl_map->AddValueToStruct(named_decl, |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 1535 | lldb_private::ConstString (name.c_str()), |
| 1536 | llvm_value_ptr, |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1537 | value_size, |
Sean Callanan | 4edba2d | 2010-07-27 02:07:53 +0000 | [diff] [blame] | 1538 | value_alignment)) |
Sean Callanan | af8e96c | 2011-08-01 17:41:38 +0000 | [diff] [blame] | 1539 | { |
| 1540 | if (!global_variable->hasExternalLinkage()) |
| 1541 | return true; |
Sean Callanan | 0ff3bf9 | 2013-04-11 17:57:16 +0000 | [diff] [blame] | 1542 | else if (HandleSymbol (global_variable)) |
| 1543 | return true; |
Sean Callanan | af8e96c | 2011-08-01 17:41:38 +0000 | [diff] [blame] | 1544 | else |
| 1545 | return false; |
| 1546 | } |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1547 | } |
Sean Callanan | 4a5fcbb | 2010-12-03 03:02:31 +0000 | [diff] [blame] | 1548 | else if (dyn_cast<llvm::Function>(llvm_value_ptr)) |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1549 | { |
| 1550 | if (log) |
| 1551 | log->Printf("Function pointers aren't handled right now"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1552 | |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1553 | return false; |
| 1554 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1555 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1556 | return true; |
| 1557 | } |
| 1558 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1559 | // This function does not report errors; its callers are responsible. |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1560 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1561 | IRForTarget::HandleSymbol (Value *symbol) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1562 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1563 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1564 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1565 | lldb_private::ConstString name(symbol->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1566 | |
Sean Callanan | 947ccc7 | 2011-12-01 02:04:16 +0000 | [diff] [blame] | 1567 | lldb::addr_t symbol_addr = m_decl_map->GetSymbolAddress (name, lldb::eSymbolTypeAny); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1568 | |
Greg Clayton | 084db10 | 2011-06-23 04:25:29 +0000 | [diff] [blame] | 1569 | if (symbol_addr == LLDB_INVALID_ADDRESS) |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1570 | { |
| 1571 | if (log) |
| 1572 | log->Printf ("Symbol \"%s\" had no address", name.GetCString()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1573 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1574 | return false; |
| 1575 | } |
| 1576 | |
| 1577 | if (log) |
Daniel Malea | d01b295 | 2012-11-29 21:49:15 +0000 | [diff] [blame] | 1578 | log->Printf("Found \"%s\" at 0x%" PRIx64, name.GetCString(), symbol_addr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1579 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1580 | Type *symbol_type = symbol->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1581 | |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 1582 | Constant *symbol_addr_int = ConstantInt::get(m_intptr_ty, symbol_addr, false); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1583 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1584 | Value *symbol_addr_ptr = ConstantExpr::getIntToPtr(symbol_addr_int, symbol_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1585 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1586 | if (log) |
| 1587 | log->Printf("Replacing %s with %s", PrintValue(symbol).c_str(), PrintValue(symbol_addr_ptr).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1588 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1589 | symbol->replaceAllUsesWith(symbol_addr_ptr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1590 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1591 | return true; |
| 1592 | } |
| 1593 | |
| 1594 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1595 | IRForTarget::MaybeHandleCallArguments (CallInst *Old) |
Sean Callanan | 85a0a83 | 2010-10-05 22:26:43 +0000 | [diff] [blame] | 1596 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1597 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1598 | |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1599 | if (log) |
| 1600 | log->Printf("MaybeHandleCallArguments(%s)", PrintValue(Old).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1601 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 1602 | for (unsigned op_index = 0, num_ops = Old->getNumArgOperands(); |
Sean Callanan | 85a0a83 | 2010-10-05 22:26:43 +0000 | [diff] [blame] | 1603 | op_index < num_ops; |
| 1604 | ++op_index) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1605 | if (!MaybeHandleVariable(Old->getArgOperand(op_index))) // conservatively believe that this is a store |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1606 | { |
| 1607 | if (m_error_stream) |
| 1608 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite one of the arguments of a function call.\n"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1609 | |
Sean Callanan | 85a0a83 | 2010-10-05 22:26:43 +0000 | [diff] [blame] | 1610 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1611 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1612 | |
Sean Callanan | 85a0a83 | 2010-10-05 22:26:43 +0000 | [diff] [blame] | 1613 | return true; |
| 1614 | } |
| 1615 | |
| 1616 | bool |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1617 | IRForTarget::HandleObjCClass(Value *classlist_reference) |
| 1618 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1619 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1620 | |
| 1621 | GlobalVariable *global_variable = dyn_cast<GlobalVariable>(classlist_reference); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1622 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1623 | if (!global_variable) |
| 1624 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1625 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1626 | Constant *initializer = global_variable->getInitializer(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1627 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1628 | if (!initializer) |
| 1629 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1630 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1631 | if (!initializer->hasName()) |
| 1632 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1633 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1634 | StringRef name(initializer->getName()); |
| 1635 | lldb_private::ConstString name_cstr(name.str().c_str()); |
Greg Clayton | 1075aca | 2011-12-03 20:02:42 +0000 | [diff] [blame] | 1636 | lldb::addr_t class_ptr = m_decl_map->GetSymbolAddress(name_cstr, lldb::eSymbolTypeObjCClass); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1637 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1638 | if (log) |
| 1639 | log->Printf("Found reference to Objective-C class %s (0x%llx)", name_cstr.AsCString(), (unsigned long long)class_ptr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1640 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1641 | if (class_ptr == LLDB_INVALID_ADDRESS) |
| 1642 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1643 | |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1644 | if (global_variable->use_empty()) |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1645 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1646 | |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1647 | SmallVector<LoadInst *, 2> load_instructions; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1648 | |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1649 | for (llvm::User *u : global_variable->users()) |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1650 | { |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1651 | if (LoadInst *load_instruction = dyn_cast<LoadInst>(u)) |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1652 | load_instructions.push_back(load_instruction); |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1653 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1654 | |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1655 | if (load_instructions.empty()) |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1656 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1657 | |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 1658 | Constant *class_addr = ConstantInt::get(m_intptr_ty, (uint64_t)class_ptr); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1659 | |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1660 | for (LoadInst *load_instruction : load_instructions) |
| 1661 | { |
| 1662 | Constant *class_bitcast = ConstantExpr::getIntToPtr(class_addr, load_instruction->getType()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1663 | |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1664 | load_instruction->replaceAllUsesWith(class_bitcast); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1665 | |
Sean Callanan | 719a4d5 | 2013-03-23 01:01:16 +0000 | [diff] [blame] | 1666 | load_instruction->eraseFromParent(); |
| 1667 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1668 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1669 | return true; |
| 1670 | } |
| 1671 | |
| 1672 | bool |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1673 | IRForTarget::RemoveCXAAtExit (BasicBlock &basic_block) |
| 1674 | { |
| 1675 | BasicBlock::iterator ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1676 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1677 | std::vector<CallInst *> calls_to_remove; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1678 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1679 | for (ii = basic_block.begin(); |
| 1680 | ii != basic_block.end(); |
| 1681 | ++ii) |
| 1682 | { |
| 1683 | Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1684 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1685 | CallInst *call = dyn_cast<CallInst>(&inst); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1686 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1687 | // MaybeHandleCallArguments handles error reporting; we are silent here |
| 1688 | if (!call) |
| 1689 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1690 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1691 | bool remove = false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1692 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1693 | llvm::Function *func = call->getCalledFunction(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1694 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1695 | if (func && func->getName() == "__cxa_atexit") |
| 1696 | remove = true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1697 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1698 | llvm::Value *val = call->getCalledValue(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1699 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1700 | if (val && val->getName() == "__cxa_atexit") |
| 1701 | remove = true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1702 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1703 | if (remove) |
| 1704 | calls_to_remove.push_back(call); |
| 1705 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1706 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1707 | for (std::vector<CallInst *>::iterator ci = calls_to_remove.begin(), ce = calls_to_remove.end(); |
| 1708 | ci != ce; |
| 1709 | ++ci) |
| 1710 | { |
| 1711 | (*ci)->eraseFromParent(); |
| 1712 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1713 | |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 1714 | return true; |
| 1715 | } |
| 1716 | |
| 1717 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1718 | IRForTarget::ResolveCalls(BasicBlock &basic_block) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1719 | { |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 1720 | ///////////////////////////////////////////////////////////////////////// |
| 1721 | // Prepare the current basic block for execution in the remote process |
| 1722 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1723 | |
Sean Callanan | 7ea3501 | 2010-07-27 21:39:39 +0000 | [diff] [blame] | 1724 | BasicBlock::iterator ii; |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1725 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1726 | for (ii = basic_block.begin(); |
| 1727 | ii != basic_block.end(); |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1728 | ++ii) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 1729 | { |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 1730 | Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1731 | |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1732 | CallInst *call = dyn_cast<CallInst>(&inst); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1733 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1734 | // MaybeHandleCallArguments handles error reporting; we are silent here |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1735 | if (call && !MaybeHandleCallArguments(call)) |
Sean Callanan | d7a1ca2 | 2010-12-02 19:47:57 +0000 | [diff] [blame] | 1736 | return false; |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 1737 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1738 | |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 1739 | return true; |
| 1740 | } |
| 1741 | |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1742 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1743 | IRForTarget::ResolveExternals (Function &llvm_function) |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1744 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1745 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1746 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1747 | for (GlobalVariable &global_var : m_module->globals()) |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1748 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1749 | std::string global_name = global_var.getName().str(); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1750 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 1751 | if (log) |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1752 | log->Printf("Examining %s, DeclForGlobalValue returns %p", |
Sean Callanan | 694e244 | 2011-12-22 21:24:49 +0000 | [diff] [blame] | 1753 | global_name.c_str(), |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1754 | static_cast<void*>(DeclForGlobal(&global_var))); |
| 1755 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1756 | if (global_name.find("OBJC_IVAR") == 0) |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1757 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1758 | if (!HandleSymbol(&global_var)) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1759 | { |
| 1760 | if (m_error_stream) |
Sean Callanan | 694e244 | 2011-12-22 21:24:49 +0000 | [diff] [blame] | 1761 | m_error_stream->Printf("Error [IRForTarget]: Couldn't find Objective-C indirect ivar symbol %s\n", global_name.c_str()); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1762 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1763 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1764 | } |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1765 | } |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1766 | else if (global_name.find("OBJC_CLASSLIST_REFERENCES_$") != global_name.npos) |
| 1767 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1768 | if (!HandleObjCClass(&global_var)) |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1769 | { |
| 1770 | if (m_error_stream) |
| 1771 | m_error_stream->Printf("Error [IRForTarget]: Couldn't resolve the class for an Objective-C static method call\n"); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1772 | |
Sean Callanan | fc89c14 | 2011-11-01 23:38:03 +0000 | [diff] [blame] | 1773 | return false; |
| 1774 | } |
| 1775 | } |
Sean Callanan | 2ad6691 | 2013-04-24 21:25:20 +0000 | [diff] [blame] | 1776 | else if (global_name.find("OBJC_CLASSLIST_SUP_REFS_$") != global_name.npos) |
| 1777 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1778 | if (!HandleObjCClass(&global_var)) |
Sean Callanan | 2ad6691 | 2013-04-24 21:25:20 +0000 | [diff] [blame] | 1779 | { |
| 1780 | if (m_error_stream) |
| 1781 | m_error_stream->Printf("Error [IRForTarget]: Couldn't resolve the class for an Objective-C static method call\n"); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1782 | |
Sean Callanan | 2ad6691 | 2013-04-24 21:25:20 +0000 | [diff] [blame] | 1783 | return false; |
| 1784 | } |
| 1785 | } |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1786 | else if (DeclForGlobal(&global_var)) |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1787 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1788 | if (!MaybeHandleVariable (&global_var)) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1789 | { |
| 1790 | if (m_error_stream) |
Sean Callanan | 694e244 | 2011-12-22 21:24:49 +0000 | [diff] [blame] | 1791 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite external variable %s\n", global_name.c_str()); |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1792 | |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1793 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 1794 | } |
Sean Callanan | c3a1600 | 2011-01-17 23:42:46 +0000 | [diff] [blame] | 1795 | } |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1796 | } |
Saleem Abdulrasool | 324a103 | 2014-04-04 04:06:10 +0000 | [diff] [blame] | 1797 | |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 1798 | return true; |
| 1799 | } |
| 1800 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1801 | bool |
| 1802 | IRForTarget::ReplaceStrings () |
| 1803 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1804 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1805 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1806 | typedef std::map <GlobalVariable *, size_t> OffsetsTy; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1807 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1808 | OffsetsTy offsets; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1809 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1810 | for (GlobalVariable &gv : m_module->globals()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1811 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1812 | if (!gv.hasInitializer()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1813 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1814 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1815 | Constant *gc = gv.getInitializer(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1816 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1817 | std::string str; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1818 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1819 | if (gc->isNullValue()) |
| 1820 | { |
| 1821 | Type *gc_type = gc->getType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1822 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1823 | ArrayType *gc_array_type = dyn_cast<ArrayType>(gc_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1824 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1825 | if (!gc_array_type) |
| 1826 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1827 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1828 | Type *gc_element_type = gc_array_type->getElementType(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1829 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1830 | IntegerType *gc_integer_type = dyn_cast<IntegerType>(gc_element_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1831 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1832 | if (gc_integer_type->getBitWidth() != 8) |
| 1833 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1834 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1835 | str = ""; |
| 1836 | } |
| 1837 | else |
| 1838 | { |
Sean Callanan | d2b465f | 2012-02-09 03:22:41 +0000 | [diff] [blame] | 1839 | ConstantDataArray *gc_array = dyn_cast<ConstantDataArray>(gc); |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1840 | |
| 1841 | if (!gc_array) |
| 1842 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1843 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1844 | if (!gc_array->isCString()) |
| 1845 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1846 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1847 | if (log) |
| 1848 | log->Printf("Found a GlobalVariable with string initializer %s", PrintValue(gc).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1849 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1850 | str = gc_array->getAsString(); |
| 1851 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1852 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1853 | offsets[&gv] = m_data_allocator.GetStream().GetSize(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1854 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 1855 | m_data_allocator.GetStream().Write(str.c_str(), str.length() + 1); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1856 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1857 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 1858 | Type *char_ptr_ty = Type::getInt8PtrTy(m_module->getContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1859 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1860 | for (OffsetsTy::iterator oi = offsets.begin(), oe = offsets.end(); |
| 1861 | oi != oe; |
| 1862 | ++oi) |
| 1863 | { |
| 1864 | GlobalVariable *gv = oi->first; |
| 1865 | size_t offset = oi->second; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1866 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1867 | Constant *new_initializer = BuildRelocation(char_ptr_ty, offset); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1868 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1869 | if (log) |
| 1870 | log->Printf("Replacing GV %s with %s", PrintValue(gv).c_str(), PrintValue(new_initializer).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1871 | |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1872 | for (llvm::User *u : gv->users()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1873 | { |
| 1874 | if (log) |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1875 | log->Printf("Found use %s", PrintValue(u).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1876 | |
Ed Maste | a855309 | 2014-03-10 17:24:16 +0000 | [diff] [blame] | 1877 | ConstantExpr *const_expr = dyn_cast<ConstantExpr>(u); |
| 1878 | StoreInst *store_inst = dyn_cast<StoreInst>(u); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1879 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1880 | if (const_expr) |
| 1881 | { |
| 1882 | if (const_expr->getOpcode() != Instruction::GetElementPtr) |
| 1883 | { |
| 1884 | if (log) |
| 1885 | log->Printf("Use (%s) of string variable is not a GetElementPtr constant", PrintValue(const_expr).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1886 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1887 | return false; |
| 1888 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1889 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1890 | Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, const_expr->getOperand(0)->getType()); |
| 1891 | Constant *new_gep = const_expr->getWithOperandReplaced(0, bit_cast); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1892 | |
Sean Callanan | 5207a34 | 2011-08-10 21:05:52 +0000 | [diff] [blame] | 1893 | const_expr->replaceAllUsesWith(new_gep); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1894 | } |
| 1895 | else if (store_inst) |
| 1896 | { |
| 1897 | Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, store_inst->getValueOperand()->getType()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1898 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1899 | store_inst->setOperand(0, bit_cast); |
| 1900 | } |
| 1901 | else |
| 1902 | { |
| 1903 | if (log) |
| 1904 | log->Printf("Use (%s) of string variable is neither a constant nor a store", PrintValue(const_expr).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1905 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1906 | return false; |
| 1907 | } |
| 1908 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1909 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1910 | gv->eraseFromParent(); |
| 1911 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1912 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1913 | return true; |
| 1914 | } |
| 1915 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1916 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1917 | IRForTarget::ReplaceStaticLiterals (llvm::BasicBlock &basic_block) |
| 1918 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 1919 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1920 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1921 | typedef SmallVector <Value*, 2> ConstantList; |
| 1922 | typedef SmallVector <llvm::Instruction*, 2> UserList; |
| 1923 | typedef ConstantList::iterator ConstantIterator; |
| 1924 | typedef UserList::iterator UserIterator; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1925 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1926 | ConstantList static_constants; |
| 1927 | UserList static_users; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1928 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1929 | for (BasicBlock::iterator ii = basic_block.begin(), ie = basic_block.end(); |
| 1930 | ii != ie; |
| 1931 | ++ii) |
| 1932 | { |
| 1933 | llvm::Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1934 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 1935 | for (Value *operand_val : inst.operand_values()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1936 | { |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1937 | ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1938 | |
Sean Callanan | 822944c | 2012-04-26 20:51:20 +0000 | [diff] [blame] | 1939 | if (operand_constant_fp/* && operand_constant_fp->getType()->isX86_FP80Ty()*/) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1940 | { |
| 1941 | static_constants.push_back(operand_val); |
| 1942 | static_users.push_back(ii); |
| 1943 | } |
| 1944 | } |
| 1945 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1946 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1947 | ConstantIterator constant_iter; |
| 1948 | UserIterator user_iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1949 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1950 | for (constant_iter = static_constants.begin(), user_iter = static_users.begin(); |
| 1951 | constant_iter != static_constants.end(); |
| 1952 | ++constant_iter, ++user_iter) |
| 1953 | { |
| 1954 | Value *operand_val = *constant_iter; |
| 1955 | llvm::Instruction *inst = *user_iter; |
| 1956 | |
| 1957 | ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1958 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1959 | if (operand_constant_fp) |
| 1960 | { |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 1961 | Type *operand_type = operand_constant_fp->getType(); |
| 1962 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1963 | APFloat operand_apfloat = operand_constant_fp->getValueAPF(); |
| 1964 | APInt operand_apint = operand_apfloat.bitcastToAPInt(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1965 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1966 | const uint8_t* operand_raw_data = (const uint8_t*)operand_apint.getRawData(); |
| 1967 | size_t operand_data_size = operand_apint.getBitWidth() / 8; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1968 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1969 | if (log) |
| 1970 | { |
| 1971 | std::string s; |
| 1972 | raw_string_ostream ss(s); |
| 1973 | for (size_t index = 0; |
| 1974 | index < operand_data_size; |
| 1975 | ++index) |
| 1976 | { |
| 1977 | ss << (uint32_t)operand_raw_data[index]; |
| 1978 | ss << " "; |
| 1979 | } |
| 1980 | ss.flush(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1981 | |
Greg Clayton | 6fea17e | 2014-03-03 19:15:20 +0000 | [diff] [blame] | 1982 | log->Printf("Found ConstantFP with size %" PRIu64 " and raw data %s", (uint64_t)operand_data_size, s.c_str()); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1983 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1984 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1985 | lldb_private::DataBufferHeap data(operand_data_size, 0); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1986 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 1987 | if (lldb::endian::InlHostByteOrder() != m_data_allocator.GetStream().GetByteOrder()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1988 | { |
| 1989 | uint8_t *data_bytes = data.GetBytes(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 1990 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 1991 | for (size_t index = 0; |
| 1992 | index < operand_data_size; |
| 1993 | ++index) |
| 1994 | { |
| 1995 | data_bytes[index] = operand_raw_data[operand_data_size - (1 + index)]; |
| 1996 | } |
| 1997 | } |
| 1998 | else |
| 1999 | { |
| 2000 | memcpy(data.GetBytes(), operand_raw_data, operand_data_size); |
| 2001 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2002 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2003 | uint64_t offset = m_data_allocator.GetStream().GetSize(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2004 | |
Sean Callanan | e3333d6 | 2012-06-08 22:20:41 +0000 | [diff] [blame] | 2005 | size_t align = m_target_data->getPrefTypeAlignment(operand_type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2006 | |
Sean Callanan | e3333d6 | 2012-06-08 22:20:41 +0000 | [diff] [blame] | 2007 | const size_t mask = (align - 1); |
| 2008 | uint64_t aligned_offset = (offset + mask) & ~mask; |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2009 | m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2010 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2011 | m_data_allocator.GetStream().Write(data.GetBytes(), operand_data_size); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2012 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2013 | llvm::Type *fp_ptr_ty = operand_constant_fp->getType()->getPointerTo(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2014 | |
Sean Callanan | 1582ee6 | 2013-04-18 22:06:33 +0000 | [diff] [blame] | 2015 | Constant *new_pointer = BuildRelocation(fp_ptr_ty, aligned_offset); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2016 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2017 | llvm::LoadInst *fp_load = new llvm::LoadInst(new_pointer, "fp_load", inst); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2018 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2019 | operand_constant_fp->replaceAllUsesWith(fp_load); |
| 2020 | } |
| 2021 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2022 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2023 | return true; |
| 2024 | } |
| 2025 | |
Sean Callanan | 7ea3501 | 2010-07-27 21:39:39 +0000 | [diff] [blame] | 2026 | static bool isGuardVariableRef(Value *V) |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2027 | { |
Sean Callanan | 77eaf44 | 2011-07-08 00:39:14 +0000 | [diff] [blame] | 2028 | Constant *Old = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2029 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2030 | if (!(Old = dyn_cast<Constant>(V))) |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2031 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2032 | |
Sean Callanan | 77eaf44 | 2011-07-08 00:39:14 +0000 | [diff] [blame] | 2033 | ConstantExpr *CE = NULL; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2034 | |
Sean Callanan | e2ef6e3 | 2010-09-23 03:01:22 +0000 | [diff] [blame] | 2035 | if ((CE = dyn_cast<ConstantExpr>(V))) |
| 2036 | { |
| 2037 | if (CE->getOpcode() != Instruction::BitCast) |
| 2038 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2039 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2040 | Old = CE->getOperand(0); |
Sean Callanan | e2ef6e3 | 2010-09-23 03:01:22 +0000 | [diff] [blame] | 2041 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2042 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2043 | GlobalVariable *GV = dyn_cast<GlobalVariable>(Old); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2044 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2045 | if (!GV || !GV->hasName() || !GV->getName().startswith("_ZGV")) |
| 2046 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2047 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2048 | return true; |
| 2049 | } |
| 2050 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2051 | void |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2052 | IRForTarget::TurnGuardLoadIntoZero(llvm::Instruction* guard_load) |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2053 | { |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2054 | Constant* zero(ConstantInt::get(Type::getInt8Ty(m_module->getContext()), 0, true)); |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2055 | |
Ed Maste | 80e8cc6 | 2014-03-10 14:23:10 +0000 | [diff] [blame] | 2056 | for (llvm::User *u : guard_load->users()) |
Sean Callanan | b27a62f | 2010-07-27 01:17:28 +0000 | [diff] [blame] | 2057 | { |
Ed Maste | 80e8cc6 | 2014-03-10 14:23:10 +0000 | [diff] [blame] | 2058 | if (isa<Constant>(u)) |
Sean Callanan | b27a62f | 2010-07-27 01:17:28 +0000 | [diff] [blame] | 2059 | { |
| 2060 | // do nothing for the moment |
| 2061 | } |
| 2062 | else |
| 2063 | { |
Ed Maste | 80e8cc6 | 2014-03-10 14:23:10 +0000 | [diff] [blame] | 2064 | u->replaceUsesOfWith(guard_load, zero); |
Sean Callanan | b27a62f | 2010-07-27 01:17:28 +0000 | [diff] [blame] | 2065 | } |
| 2066 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2067 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2068 | guard_load->eraseFromParent(); |
| 2069 | } |
| 2070 | |
| 2071 | static void ExciseGuardStore(Instruction* guard_store) |
| 2072 | { |
| 2073 | guard_store->eraseFromParent(); |
| 2074 | } |
| 2075 | |
| 2076 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2077 | IRForTarget::RemoveGuards(BasicBlock &basic_block) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2078 | { |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2079 | /////////////////////////////////////////////////////// |
| 2080 | // Eliminate any reference to guard variables found. |
| 2081 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2082 | |
Sean Callanan | 7ea3501 | 2010-07-27 21:39:39 +0000 | [diff] [blame] | 2083 | BasicBlock::iterator ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2084 | |
Sean Callanan | 7ea3501 | 2010-07-27 21:39:39 +0000 | [diff] [blame] | 2085 | typedef SmallVector <Instruction*, 2> InstrList; |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2086 | typedef InstrList::iterator InstrIterator; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2087 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2088 | InstrList guard_loads; |
| 2089 | InstrList guard_stores; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2090 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2091 | for (ii = basic_block.begin(); |
| 2092 | ii != basic_block.end(); |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2093 | ++ii) |
| 2094 | { |
| 2095 | Instruction &inst = *ii; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2096 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2097 | if (LoadInst *load = dyn_cast<LoadInst>(&inst)) |
| 2098 | if (isGuardVariableRef(load->getPointerOperand())) |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2099 | guard_loads.push_back(&inst); |
| 2100 | |
| 2101 | if (StoreInst *store = dyn_cast<StoreInst>(&inst)) |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2102 | if (isGuardVariableRef(store->getPointerOperand())) |
| 2103 | guard_stores.push_back(&inst); |
| 2104 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2105 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2106 | InstrIterator iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2107 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2108 | for (iter = guard_loads.begin(); |
| 2109 | iter != guard_loads.end(); |
| 2110 | ++iter) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2111 | TurnGuardLoadIntoZero(*iter); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2112 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2113 | for (iter = guard_stores.begin(); |
| 2114 | iter != guard_stores.end(); |
| 2115 | ++iter) |
| 2116 | ExciseGuardStore(*iter); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2117 | |
Sean Callanan | ddb46ef | 2010-07-24 01:37:44 +0000 | [diff] [blame] | 2118 | return true; |
| 2119 | } |
| 2120 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2121 | // This function does not report errors; its callers are responsible. |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2122 | bool |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2123 | IRForTarget::UnfoldConstant(Constant *old_constant, |
| 2124 | FunctionValueCache &value_maker, |
| 2125 | FunctionValueCache &entry_instruction_finder) |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2126 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2127 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2128 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 2129 | SmallVector<User*, 16> users; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2130 | |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 2131 | // We do this because the use list might change, invalidating our iterator. |
| 2132 | // Much better to keep a work list ourselves. |
Ed Maste | 80e8cc6 | 2014-03-10 14:23:10 +0000 | [diff] [blame] | 2133 | for (llvm::User *u : old_constant->users()) |
| 2134 | users.push_back(u); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2135 | |
Johnny Chen | 4480530 | 2011-07-19 19:48:13 +0000 | [diff] [blame] | 2136 | for (size_t i = 0; |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 2137 | i < users.size(); |
| 2138 | ++i) |
| 2139 | { |
| 2140 | User *user = users[i]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2141 | |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2142 | if (Constant *constant = dyn_cast<Constant>(user)) |
| 2143 | { |
| 2144 | // synthesize a new non-constant equivalent of the constant |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2145 | |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2146 | if (ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(constant)) |
| 2147 | { |
| 2148 | switch (constant_expr->getOpcode()) |
| 2149 | { |
| 2150 | default: |
| 2151 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 2152 | log->Printf("Unhandled constant expression type: \"%s\"", PrintValue(constant_expr).c_str()); |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2153 | return false; |
| 2154 | case Instruction::BitCast: |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2155 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2156 | FunctionValueCache bit_cast_maker ([&value_maker, &entry_instruction_finder, old_constant, constant_expr] (llvm::Function *function)->llvm::Value* { |
| 2157 | // UnaryExpr |
| 2158 | // OperandList[0] is value |
| 2159 | |
| 2160 | if (constant_expr->getOperand(0) != old_constant) |
| 2161 | return constant_expr; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2162 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2163 | return new BitCastInst(value_maker.GetValue(function), |
| 2164 | constant_expr->getType(), |
| 2165 | "", |
| 2166 | llvm::cast<Instruction>(entry_instruction_finder.GetValue(function))); |
| 2167 | }); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2168 | |
Sean Callanan | 0e016fe | 2013-07-15 23:31:47 +0000 | [diff] [blame] | 2169 | if (!UnfoldConstant(constant_expr, bit_cast_maker, entry_instruction_finder)) |
| 2170 | return false; |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2171 | } |
| 2172 | break; |
| 2173 | case Instruction::GetElementPtr: |
| 2174 | { |
| 2175 | // GetElementPtrConstantExpr |
| 2176 | // OperandList[0] is base |
| 2177 | // OperandList[1]... are indices |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2178 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2179 | FunctionValueCache get_element_pointer_maker ([&value_maker, &entry_instruction_finder, old_constant, constant_expr] (llvm::Function *function)->llvm::Value* { |
| 2180 | Value *ptr = constant_expr->getOperand(0); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2181 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2182 | if (ptr == old_constant) |
| 2183 | ptr = value_maker.GetValue(function); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2184 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2185 | std::vector<Value*> index_vector; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2186 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2187 | unsigned operand_index; |
| 2188 | unsigned num_operands = constant_expr->getNumOperands(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2189 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2190 | for (operand_index = 1; |
| 2191 | operand_index < num_operands; |
| 2192 | ++operand_index) |
| 2193 | { |
| 2194 | Value *operand = constant_expr->getOperand(operand_index); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2195 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2196 | if (operand == old_constant) |
| 2197 | operand = value_maker.GetValue(function); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2198 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2199 | index_vector.push_back(operand); |
| 2200 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2201 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2202 | ArrayRef <Value*> indices(index_vector); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2203 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2204 | return GetElementPtrInst::Create(ptr, indices, "", llvm::cast<Instruction>(entry_instruction_finder.GetValue(function))); |
| 2205 | }); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2206 | |
Sean Callanan | 0e016fe | 2013-07-15 23:31:47 +0000 | [diff] [blame] | 2207 | if (!UnfoldConstant(constant_expr, get_element_pointer_maker, entry_instruction_finder)) |
| 2208 | return false; |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2209 | } |
| 2210 | break; |
| 2211 | } |
| 2212 | } |
| 2213 | else |
| 2214 | { |
| 2215 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 2216 | log->Printf("Unhandled constant type: \"%s\"", PrintValue(constant).c_str()); |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2217 | return false; |
| 2218 | } |
| 2219 | } |
| 2220 | else |
| 2221 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2222 | if (Instruction *inst = llvm::dyn_cast<Instruction>(user)) |
| 2223 | { |
| 2224 | inst->replaceUsesOfWith(old_constant, value_maker.GetValue(inst->getParent()->getParent())); |
| 2225 | } |
| 2226 | else |
| 2227 | { |
| 2228 | if (log) |
| 2229 | log->Printf("Unhandled non-constant type: \"%s\"", PrintValue(user).c_str()); |
| 2230 | return false; |
| 2231 | } |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2232 | } |
| 2233 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2234 | |
Sean Callanan | 0e016fe | 2013-07-15 23:31:47 +0000 | [diff] [blame] | 2235 | if (!isa<GlobalValue>(old_constant)) |
| 2236 | { |
| 2237 | old_constant->destroyConstant(); |
| 2238 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2239 | |
Sean Callanan | 7618f4e | 2010-07-14 23:40:29 +0000 | [diff] [blame] | 2240 | return true; |
| 2241 | } |
| 2242 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2243 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2244 | IRForTarget::ReplaceVariables (Function &llvm_function) |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2245 | { |
Sean Callanan | 9e6ed53 | 2010-09-13 21:34:21 +0000 | [diff] [blame] | 2246 | if (!m_resolve_vars) |
| 2247 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2248 | |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2249 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2250 | |
| 2251 | m_decl_map->DoStructLayout(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2252 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2253 | if (log) |
| 2254 | log->Printf("Element arrangement:"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2255 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2256 | uint32_t num_elements; |
| 2257 | uint32_t element_index; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2258 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2259 | size_t size; |
Zachary Turner | a746e8e | 2014-07-02 17:24:07 +0000 | [diff] [blame] | 2260 | lldb::offset_t alignment; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2261 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2262 | if (!m_decl_map->GetStructInfo (num_elements, size, alignment)) |
| 2263 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2264 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2265 | Function::arg_iterator iter(llvm_function.getArgumentList().begin()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2266 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2267 | if (iter == llvm_function.getArgumentList().end()) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2268 | { |
| 2269 | if (m_error_stream) |
| 2270 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes no arguments (should take at least a struct pointer)"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2271 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2272 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2273 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2274 | |
Sean Callanan | 7ea3501 | 2010-07-27 21:39:39 +0000 | [diff] [blame] | 2275 | Argument *argument = iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2276 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 2277 | if (argument->getName().equals("this")) |
| 2278 | { |
| 2279 | ++iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2280 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2281 | if (iter == llvm_function.getArgumentList().end()) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2282 | { |
| 2283 | if (m_error_stream) |
| 2284 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'this' argument (should take a struct pointer too)"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2285 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 2286 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2287 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2288 | |
Sean Callanan | fc55f5d | 2010-09-21 00:44:12 +0000 | [diff] [blame] | 2289 | argument = iter; |
| 2290 | } |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2291 | else if (argument->getName().equals("self")) |
| 2292 | { |
| 2293 | ++iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2294 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2295 | if (iter == llvm_function.getArgumentList().end()) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2296 | { |
| 2297 | if (m_error_stream) |
| 2298 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'self' argument (should take '_cmd' and a struct pointer too)"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2299 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2300 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2301 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2302 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2303 | if (!iter->getName().equals("_cmd")) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2304 | { |
| 2305 | if (m_error_stream) |
| 2306 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes '%s' after 'self' argument (should take '_cmd')", iter->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2307 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2308 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2309 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2310 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2311 | ++iter; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2312 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2313 | if (iter == llvm_function.getArgumentList().end()) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2314 | { |
| 2315 | if (m_error_stream) |
| 2316 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'self' and '_cmd' arguments (should take a struct pointer too)"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2317 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2318 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2319 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2320 | |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2321 | argument = iter; |
| 2322 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2323 | |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 2324 | if (!argument->getName().equals("$__lldb_arg")) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2325 | { |
| 2326 | if (m_error_stream) |
| 2327 | m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes an argument named '%s' instead of the struct pointer", argument->getName().str().c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2328 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2329 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2330 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2331 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2332 | if (log) |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 2333 | log->Printf("Arg: \"%s\"", PrintValue(argument).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2334 | |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2335 | BasicBlock &entry_block(llvm_function.getEntryBlock()); |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2336 | Instruction *FirstEntryInstruction(entry_block.getFirstNonPHIOrDbg()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2337 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2338 | if (!FirstEntryInstruction) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2339 | { |
| 2340 | if (m_error_stream) |
| 2341 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find the first instruction in the wrapper for use in rewriting"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2342 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2343 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2344 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2345 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2346 | LLVMContext &context(m_module->getContext()); |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2347 | IntegerType *offset_type(Type::getInt32Ty(context)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2348 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2349 | if (!offset_type) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2350 | { |
| 2351 | if (m_error_stream) |
| 2352 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't produce an offset type"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2353 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2354 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2355 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2356 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2357 | for (element_index = 0; element_index < num_elements; ++element_index) |
| 2358 | { |
Sean Callanan | 77eaf44 | 2011-07-08 00:39:14 +0000 | [diff] [blame] | 2359 | const clang::NamedDecl *decl = NULL; |
| 2360 | Value *value = NULL; |
Zachary Turner | a746e8e | 2014-07-02 17:24:07 +0000 | [diff] [blame] | 2361 | lldb::offset_t offset; |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 2362 | lldb_private::ConstString name; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2363 | |
Sean Callanan | 823bb4c | 2010-08-30 22:17:16 +0000 | [diff] [blame] | 2364 | if (!m_decl_map->GetStructElement (decl, value, offset, name, element_index)) |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2365 | { |
| 2366 | if (m_error_stream) |
| 2367 | m_error_stream->Printf("Internal error [IRForTarget]: Structure information is incomplete"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2368 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2369 | return false; |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2370 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2371 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2372 | if (log) |
Zachary Turner | a746e8e | 2014-07-02 17:24:07 +0000 | [diff] [blame] | 2373 | log->Printf(" \"%s\" (\"%s\") placed at %" PRIu64, |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 2374 | name.GetCString(), |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2375 | decl->getNameAsString().c_str(), |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2376 | offset); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2377 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2378 | if (value) |
Sean Callanan | 92adcac | 2011-01-13 08:53:35 +0000 | [diff] [blame] | 2379 | { |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2380 | if (log) |
| 2381 | log->Printf(" Replacing [%s]", PrintValue(value).c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2382 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2383 | FunctionValueCache body_result_maker ([this, name, offset_type, offset, argument, value] (llvm::Function *function)->llvm::Value * { |
| 2384 | // Per the comment at ASTResultSynthesizer::SynthesizeBodyResult, in cases where the result |
| 2385 | // variable is an rvalue, we have to synthesize a dereference of the appropriate structure |
| 2386 | // entry in order to produce the static variable that the AST thinks it is accessing. |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2387 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2388 | llvm::Instruction *entry_instruction = llvm::cast<Instruction>(m_entry_instruction_finder.GetValue(function)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2389 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2390 | ConstantInt *offset_int(ConstantInt::get(offset_type, offset, true)); |
| 2391 | GetElementPtrInst *get_element_ptr = GetElementPtrInst::Create(argument, |
| 2392 | offset_int, |
| 2393 | "", |
| 2394 | entry_instruction); |
| 2395 | |
| 2396 | if (name == m_result_name && !m_result_is_pointer) |
| 2397 | { |
| 2398 | BitCastInst *bit_cast = new BitCastInst(get_element_ptr, |
| 2399 | value->getType()->getPointerTo(), |
| 2400 | "", |
| 2401 | entry_instruction); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2402 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2403 | LoadInst *load = new LoadInst(bit_cast, "", entry_instruction); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2404 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2405 | return load; |
| 2406 | } |
| 2407 | else |
| 2408 | { |
| 2409 | BitCastInst *bit_cast = new BitCastInst(get_element_ptr, value->getType(), "", entry_instruction); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2410 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2411 | return bit_cast; |
| 2412 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2413 | }); |
| 2414 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2415 | if (Constant *constant = dyn_cast<Constant>(value)) |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2416 | { |
| 2417 | UnfoldConstant(constant, body_result_maker, m_entry_instruction_finder); |
| 2418 | } |
| 2419 | else if (Instruction *instruction = dyn_cast<Instruction>(value)) |
| 2420 | { |
| 2421 | value->replaceAllUsesWith(body_result_maker.GetValue(instruction->getParent()->getParent())); |
| 2422 | } |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2423 | else |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2424 | { |
| 2425 | if (log) |
| 2426 | log->Printf("Unhandled non-constant type: \"%s\"", PrintValue(value).c_str()); |
| 2427 | return false; |
| 2428 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2429 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2430 | if (GlobalVariable *var = dyn_cast<GlobalVariable>(value)) |
| 2431 | var->eraseFromParent(); |
| 2432 | } |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2433 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2434 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2435 | if (log) |
Greg Clayton | 6fea17e | 2014-03-03 19:15:20 +0000 | [diff] [blame] | 2436 | log->Printf("Total structure [align %" PRId64 ", size %" PRIu64 "]", (int64_t)alignment, (uint64_t)size); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2437 | |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2438 | return true; |
| 2439 | } |
| 2440 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2441 | llvm::Constant * |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2442 | IRForTarget::BuildRelocation(llvm::Type *type, uint64_t offset) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2443 | { |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2444 | llvm::Constant *offset_int = ConstantInt::get(m_intptr_ty, offset); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2445 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2446 | llvm::Constant *offset_array[1]; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2447 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2448 | offset_array[0] = offset_int; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2449 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2450 | llvm::ArrayRef<llvm::Constant *> offsets(offset_array, 1); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2451 | |
Sean Callanan | cc427fa | 2011-07-30 02:42:06 +0000 | [diff] [blame] | 2452 | llvm::Constant *reloc_getelementptr = ConstantExpr::getGetElementPtr(m_reloc_placeholder, offsets); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2453 | llvm::Constant *reloc_getbitcast = ConstantExpr::getBitCast(reloc_getelementptr, type); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2454 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2455 | return reloc_getbitcast; |
| 2456 | } |
| 2457 | |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2458 | bool |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2459 | IRForTarget::CompleteDataAllocation () |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2460 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2461 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2462 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2463 | if (!m_data_allocator.GetStream().GetSize()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2464 | return true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2465 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2466 | lldb::addr_t allocation = m_data_allocator.Allocate(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2467 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2468 | if (log) |
| 2469 | { |
| 2470 | if (allocation) |
| 2471 | log->Printf("Allocated static data at 0x%llx", (unsigned long long)allocation); |
| 2472 | else |
| 2473 | log->Printf("Failed to allocate static data"); |
| 2474 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2475 | |
Sean Callanan | 8dfb68e | 2013-03-19 00:10:07 +0000 | [diff] [blame] | 2476 | if (!allocation || allocation == LLDB_INVALID_ADDRESS) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2477 | return false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2478 | |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2479 | Constant *relocated_addr = ConstantInt::get(m_intptr_ty, (uint64_t)allocation); |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2480 | Constant *relocated_bitcast = ConstantExpr::getIntToPtr(relocated_addr, llvm::Type::getInt8PtrTy(m_module->getContext())); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2481 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2482 | m_reloc_placeholder->replaceAllUsesWith(relocated_bitcast); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2483 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2484 | m_reloc_placeholder->eraseFromParent(); |
| 2485 | |
| 2486 | return true; |
| 2487 | } |
| 2488 | |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2489 | bool |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2490 | IRForTarget::StripAllGVs (Module &llvm_module) |
| 2491 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2492 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2493 | std::vector<GlobalVariable *> global_vars; |
| 2494 | std::set<GlobalVariable *>erased_vars; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2495 | |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2496 | bool erased = true; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2497 | |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2498 | while (erased) |
| 2499 | { |
| 2500 | erased = false; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2501 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2502 | for (GlobalVariable &global_var : llvm_module.globals()) |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2503 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2504 | global_var.removeDeadConstantUsers(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2505 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2506 | if (global_var.use_empty()) |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2507 | { |
| 2508 | if (log) |
| 2509 | log->Printf("Did remove %s", |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2510 | PrintValue(&global_var).c_str()); |
| 2511 | global_var.eraseFromParent(); |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2512 | erased = true; |
| 2513 | break; |
| 2514 | } |
| 2515 | } |
| 2516 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2517 | |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2518 | for (GlobalVariable &global_var : llvm_module.globals()) |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2519 | { |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2520 | GlobalValue::user_iterator ui = global_var.user_begin(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2521 | |
Jim Ingham | d77557d | 2012-11-26 19:54:04 +0000 | [diff] [blame] | 2522 | if (log) |
| 2523 | log->Printf("Couldn't remove %s because of %s", |
Sean Callanan | 339f615 | 2014-03-11 19:19:16 +0000 | [diff] [blame] | 2524 | PrintValue(&global_var).c_str(), |
Jim Ingham | d77557d | 2012-11-26 19:54:04 +0000 | [diff] [blame] | 2525 | PrintValue(*ui).c_str()); |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2526 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2527 | |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2528 | return true; |
| 2529 | } |
| 2530 | |
| 2531 | bool |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2532 | IRForTarget::runOnModule (Module &llvm_module) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2533 | { |
Greg Clayton | 5160ce5 | 2013-03-27 23:08:40 +0000 | [diff] [blame] | 2534 | lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2535 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2536 | m_module = &llvm_module; |
Micah Villmow | 8468dbe | 2012-10-08 16:28:57 +0000 | [diff] [blame] | 2537 | m_target_data.reset(new DataLayout(m_module)); |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2538 | m_intptr_ty = llvm::Type::getIntNTy(m_module->getContext(), m_target_data->getPointerSizeInBits()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2539 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2540 | if (log) |
| 2541 | { |
| 2542 | std::string s; |
| 2543 | raw_string_ostream oss(s); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2544 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2545 | m_module->print(oss, NULL); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2546 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2547 | oss.flush(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2548 | |
Sean Callanan | c70ed46 | 2011-10-25 18:36:40 +0000 | [diff] [blame] | 2549 | log->Printf("Module as passed in to IRForTarget: \n\"%s\"", s.c_str()); |
| 2550 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2551 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2552 | Function* main_function = m_module->getFunction(StringRef(m_func_name.c_str())); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2553 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2554 | if (!main_function) |
| 2555 | { |
| 2556 | if (log) |
| 2557 | log->Printf("Couldn't find \"%s()\" in the module", m_func_name.c_str()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2558 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2559 | if (m_error_stream) |
| 2560 | m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find wrapper '%s' in the module", m_func_name.c_str()); |
| 2561 | |
| 2562 | return false; |
| 2563 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2564 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2565 | if (!FixFunctionLinkage (*main_function)) |
| 2566 | { |
| 2567 | if (log) |
| 2568 | log->Printf("Couldn't fix the linkage for the function"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2569 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2570 | return false; |
| 2571 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2572 | |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2573 | llvm::Type *int8_ty = Type::getInt8Ty(m_module->getContext()); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2574 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2575 | m_reloc_placeholder = new llvm::GlobalVariable((*m_module), |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2576 | int8_ty, |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2577 | false /* IsConstant */, |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2578 | GlobalVariable::InternalLinkage, |
Sean Callanan | 439dcae | 2013-12-20 19:55:02 +0000 | [diff] [blame] | 2579 | Constant::getNullValue(int8_ty), |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2580 | "reloc_placeholder", |
| 2581 | NULL /* InsertBefore */, |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2582 | GlobalVariable::NotThreadLocal /* ThreadLocal */, |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2583 | 0 /* AddressSpace */); |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2584 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 2585 | //////////////////////////////////////////////////////////// |
Greg Clayton | 7b462cc | 2010-10-15 22:48:33 +0000 | [diff] [blame] | 2586 | // Replace $__lldb_expr_result with a persistent variable |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 2587 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2588 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2589 | if (!CreateResultVariable(*main_function)) |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2590 | { |
| 2591 | if (log) |
| 2592 | log->Printf("CreateResultVariable() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2593 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2594 | // CreateResultVariable() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2595 | |
Sean Callanan | d1e5b43 | 2010-08-12 01:56:52 +0000 | [diff] [blame] | 2596 | return false; |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2597 | } |
Sean Callanan | 6e6d4a6 | 2012-07-21 02:02:15 +0000 | [diff] [blame] | 2598 | |
Sean Callanan | ea685ae | 2011-11-01 17:33:54 +0000 | [diff] [blame] | 2599 | if (log && log->GetVerbose()) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2600 | { |
| 2601 | std::string s; |
| 2602 | raw_string_ostream oss(s); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2603 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2604 | m_module->print(oss, NULL); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2605 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2606 | oss.flush(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2607 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2608 | log->Printf("Module after creating the result variable: \n\"%s\"", s.c_str()); |
| 2609 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2610 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2611 | for (Module::iterator fi = m_module->begin(), fe = m_module->end(); |
| 2612 | fi != fe; |
| 2613 | ++fi) |
| 2614 | { |
| 2615 | llvm::Function *function = fi; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2616 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2617 | if (function->begin() == function->end()) |
| 2618 | continue; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2619 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2620 | Function::iterator bbi; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2621 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2622 | for (bbi = function->begin(); |
| 2623 | bbi != function->end(); |
| 2624 | ++bbi) |
| 2625 | { |
| 2626 | if (!RemoveGuards(*bbi)) |
| 2627 | { |
| 2628 | if (log) |
| 2629 | log->Printf("RemoveGuards() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2630 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2631 | // RemoveGuards() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2632 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2633 | return false; |
| 2634 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2635 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2636 | if (!RewritePersistentAllocs(*bbi)) |
| 2637 | { |
| 2638 | if (log) |
| 2639 | log->Printf("RewritePersistentAllocs() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2640 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2641 | // RewritePersistentAllocs() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2642 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2643 | return false; |
| 2644 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2645 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2646 | if (!RemoveCXAAtExit(*bbi)) |
| 2647 | { |
| 2648 | if (log) |
| 2649 | log->Printf("RemoveCXAAtExit() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2650 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2651 | // RemoveCXAAtExit() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2652 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2653 | return false; |
| 2654 | } |
| 2655 | } |
| 2656 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2657 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2658 | /////////////////////////////////////////////////////////////////////////////// |
| 2659 | // Fix all Objective-C constant strings to use NSStringWithCString:encoding: |
| 2660 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2661 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2662 | if (!RewriteObjCConstStrings()) |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2663 | { |
| 2664 | if (log) |
| 2665 | log->Printf("RewriteObjCConstStrings() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2666 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2667 | // RewriteObjCConstStrings() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2668 | |
Sean Callanan | afe16a7 | 2010-11-17 23:00:36 +0000 | [diff] [blame] | 2669 | return false; |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2670 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2671 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 2672 | /////////////////////////////// |
| 2673 | // Resolve function pointers |
| 2674 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2675 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2676 | if (!ResolveFunctionPointers(llvm_module)) |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 2677 | { |
| 2678 | if (log) |
| 2679 | log->Printf("ResolveFunctionPointers() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2680 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 2681 | // ResolveFunctionPointers() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2682 | |
Sean Callanan | 0c4d8d2 | 2011-08-04 21:37:47 +0000 | [diff] [blame] | 2683 | return false; |
| 2684 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2685 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2686 | for (Module::iterator fi = m_module->begin(), fe = m_module->end(); |
| 2687 | fi != fe; |
| 2688 | ++fi) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2689 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2690 | llvm::Function *function = fi; |
| 2691 | |
| 2692 | for (llvm::Function::iterator bbi = function->begin(), bbe = function->end(); |
| 2693 | bbi != bbe; |
| 2694 | ++bbi) |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2695 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2696 | if (!RewriteObjCSelectors(*bbi)) |
| 2697 | { |
| 2698 | if (log) |
| 2699 | log->Printf("RewriteObjCSelectors() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2700 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2701 | // RewriteObjCSelectors() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2702 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2703 | return false; |
| 2704 | } |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2705 | } |
Sean Callanan | bad134f | 2012-07-27 19:25:24 +0000 | [diff] [blame] | 2706 | } |
Sean Callanan | 2235f32 | 2010-08-11 03:57:18 +0000 | [diff] [blame] | 2707 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2708 | for (Module::iterator fi = m_module->begin(), fe = m_module->end(); |
| 2709 | fi != fe; |
| 2710 | ++fi) |
Sean Callanan | bad134f | 2012-07-27 19:25:24 +0000 | [diff] [blame] | 2711 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2712 | llvm::Function *function = fi; |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2713 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2714 | for (llvm::Function::iterator bbi = function->begin(), bbe = function->end(); |
| 2715 | bbi != bbe; |
| 2716 | ++bbi) |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2717 | { |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2718 | if (!ResolveCalls(*bbi)) |
| 2719 | { |
| 2720 | if (log) |
| 2721 | log->Printf("ResolveCalls() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2722 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2723 | // ResolveCalls() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2724 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2725 | return false; |
| 2726 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2727 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2728 | if (!ReplaceStaticLiterals(*bbi)) |
| 2729 | { |
| 2730 | if (log) |
| 2731 | log->Printf("ReplaceStaticLiterals() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2732 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2733 | return false; |
| 2734 | } |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2735 | } |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2736 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2737 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2738 | //////////////////////////////////////////////////////////////////////// |
| 2739 | // Run function-level passes that only make sense on the main function |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 2740 | // |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2741 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2742 | if (!ResolveExternals(*main_function)) |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2743 | { |
| 2744 | if (log) |
| 2745 | log->Printf("ResolveExternals() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2746 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2747 | // ResolveExternals() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2748 | |
Sean Callanan | a4e5517 | 2010-11-08 00:31:32 +0000 | [diff] [blame] | 2749 | return false; |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2750 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2751 | |
Sean Callanan | 1f9db3e | 2013-06-28 21:44:15 +0000 | [diff] [blame] | 2752 | if (!ReplaceVariables(*main_function)) |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2753 | { |
| 2754 | if (log) |
| 2755 | log->Printf("ReplaceVariables() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2756 | |
Sean Callanan | 3989fb9 | 2011-01-27 01:07:04 +0000 | [diff] [blame] | 2757 | // ReplaceVariables() reports its own errors, so we don't do so here |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2758 | |
Sean Callanan | 038df503 | 2010-09-30 21:18:25 +0000 | [diff] [blame] | 2759 | return false; |
Sean Callanan | 1782783 | 2010-12-13 22:46:15 +0000 | [diff] [blame] | 2760 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2761 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2762 | if (!ReplaceStrings()) |
| 2763 | { |
| 2764 | if (log) |
| 2765 | log->Printf("ReplaceStrings() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2766 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2767 | return false; |
| 2768 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2769 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2770 | if (!CompleteDataAllocation()) |
| 2771 | { |
| 2772 | if (log) |
| 2773 | log->Printf("CompleteDataAllocation() failed"); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2774 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2775 | return false; |
| 2776 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2777 | |
Sean Callanan | 3d654b3 | 2012-09-24 22:25:51 +0000 | [diff] [blame] | 2778 | if (!StripAllGVs(llvm_module)) |
| 2779 | { |
| 2780 | if (log) |
| 2781 | log->Printf("StripAllGVs() failed"); |
| 2782 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2783 | |
Sean Callanan | ea685ae | 2011-11-01 17:33:54 +0000 | [diff] [blame] | 2784 | if (log && log->GetVerbose()) |
Sean Callanan | 549c9f7 | 2010-07-13 21:41:46 +0000 | [diff] [blame] | 2785 | { |
Sean Callanan | cc54bd3 | 2010-07-28 01:00:59 +0000 | [diff] [blame] | 2786 | std::string s; |
| 2787 | raw_string_ostream oss(s); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2788 | |
Sean Callanan | 79763a4 | 2011-05-23 21:40:23 +0000 | [diff] [blame] | 2789 | m_module->print(oss, NULL); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2790 | |
Sean Callanan | cc54bd3 | 2010-07-28 01:00:59 +0000 | [diff] [blame] | 2791 | oss.flush(); |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2792 | |
Greg Clayton | cb7e3b3 | 2010-11-15 01:47:11 +0000 | [diff] [blame] | 2793 | log->Printf("Module after preparing for execution: \n\"%s\"", s.c_str()); |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2794 | } |
Sylvestre Ledru | ceab3ac | 2014-07-06 17:54:58 +0000 | [diff] [blame] | 2795 | |
| 2796 | return true; |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2797 | } |
| 2798 | |
| 2799 | void |
Greg Clayton | 1b95a6f | 2010-11-19 01:05:25 +0000 | [diff] [blame] | 2800 | IRForTarget::assignPassManager (PMStack &pass_mgr_stack, PassManagerType pass_mgr_type) |
Sean Callanan | 2ab712f2 | 2010-07-03 01:35:46 +0000 | [diff] [blame] | 2801 | { |
| 2802 | } |
| 2803 | |
| 2804 | PassManagerType |
| 2805 | IRForTarget::getPotentialPassManagerType() const |
| 2806 | { |
| 2807 | return PMT_ModulePassManager; |
| 2808 | } |